diff --git a/Server/data.json b/Server/data.json
index 44a24d0..2d55f88 100644
--- a/Server/data.json
+++ b/Server/data.json
@@ -1,11 +1,11 @@
 {
   "users": [
     {
+      "id": 1,
       "login": "Admin",
       "password": "Admin",
       "email": "admin@mail.ru",
-      "role": "ADMIN",
-      "id": 1
+      "role": "ADMIN"
     },
     {
       "id": 2,
@@ -13,6 +13,13 @@
       "password": "123",
       "email": "user1@mail.ru",
       "role": "USER"
+    },
+    {
+      "id": 3,
+      "login": "User2",
+      "password": "123",
+      "email": "user2@gmail.ru",
+      "role": "USER"
     }
   ],
   "authors": [
@@ -3957,7 +3964,7 @@
         -39
       ],
       "authorId": 2,
-      "userId": 2
+      "userId": 1
     },
     {
       "title": "Вельд",
@@ -7316,7 +7323,7 @@
         -39
       ],
       "authorId": 2,
-      "userId": 2,
+      "userId": 1,
       "id": 4
     },
     {
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 07b9bb9..e40b67b 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -89,6 +89,7 @@ dependencies {
     implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.5.1")
     implementation("com.jakewharton.retrofit:retrofit2-kotlinx-serialization-converter:1.0.0")
 
-    // LiveData | +
+    // LiveData | DataStore
     implementation("androidx.compose.runtime:runtime-livedata:1.5.4")
+    implementation("androidx.datastore:datastore-preferences:1.0.0")
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/example/myapplication/MainActivity.kt b/app/src/main/java/com/example/myapplication/MainActivity.kt
index dd2c102..f250836 100644
--- a/app/src/main/java/com/example/myapplication/MainActivity.kt
+++ b/app/src/main/java/com/example/myapplication/MainActivity.kt
@@ -11,6 +11,7 @@ import androidx.compose.material3.Surface
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.tooling.preview.Preview
+import com.example.myapplication.composeui.authenticator.Authenticator
 import com.example.myapplication.composeui.navigation.MainNavbar
 import com.example.myapplication.ui.theme.MyApplicationTheme
 
@@ -24,7 +25,8 @@ class MainActivity : ComponentActivity() {
                     modifier = Modifier.fillMaxSize(),
                     color = MaterialTheme.colorScheme.background
                 ) {
-                    MainNavbar()
+                    Authenticator()
+                    MainNavbar();
                 }
             }
         }
diff --git a/app/src/main/java/com/example/myapplication/SingletonClass.kt b/app/src/main/java/com/example/myapplication/SingletonClass.kt
deleted file mode 100644
index d7593d3..0000000
--- a/app/src/main/java/com/example/myapplication/SingletonClass.kt
+++ /dev/null
@@ -1,14 +0,0 @@
-package com.example.myapplication
-
-class SingletonClass{
-    var _userId = 2
-    var _role = "USER"
-    fun getUserId(): Int{ return _userId }
-    fun setUserId(userId: Int){
-        _userId = userId
-    }
-    fun getRole(): String{ return _role }
-    fun setRole(role: String){
-        _role = role
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/myapplication/api/ServerService.kt b/app/src/main/java/com/example/myapplication/api/ServerService.kt
index 553346c..2a6b604 100644
--- a/app/src/main/java/com/example/myapplication/api/ServerService.kt
+++ b/app/src/main/java/com/example/myapplication/api/ServerService.kt
@@ -100,7 +100,7 @@ interface ServerService{
     suspend fun getUserByLoginPass(
         @Query("login") login: String,
         @Query("password") password: String
-    ): UserRemote
+    ): List<UserRemote>
     @POST("users")
     suspend fun createUser(
         @Body user: UserRemote,
@@ -117,7 +117,7 @@ interface ServerService{
         @Path("id") id: Int,
     ): UserRemote
     companion object {
-        private const val BASE_URL = "http://89.239.172.45:8079/"
+        private const val BASE_URL = "http://89.239.174.67:8079/"
 
         @Volatile
         private var INSTANCE: ServerService? = null
diff --git a/app/src/main/java/com/example/myapplication/api/respositories/RestUserRepository.kt b/app/src/main/java/com/example/myapplication/api/respositories/RestUserRepository.kt
index 5988667..4259f35 100644
--- a/app/src/main/java/com/example/myapplication/api/respositories/RestUserRepository.kt
+++ b/app/src/main/java/com/example/myapplication/api/respositories/RestUserRepository.kt
@@ -28,7 +28,7 @@ class RestUserRepository(
     }
 
     override suspend fun tryLogin(login: String, password: String): User? {
-        return service.getUserByLoginPass(login, password).toUser()
+        return service.getUserByLoginPass(login, password).firstOrNull()?.toUser()
     }
 
     override suspend fun insert(user: User) {
diff --git a/app/src/main/java/com/example/myapplication/composeui/AppViewModelProvider.kt b/app/src/main/java/com/example/myapplication/composeui/AppViewModelProvider.kt
index b5e61ed..bcfb67a 100644
--- a/app/src/main/java/com/example/myapplication/composeui/AppViewModelProvider.kt
+++ b/app/src/main/java/com/example/myapplication/composeui/AppViewModelProvider.kt
@@ -6,15 +6,19 @@ import androidx.lifecycle.viewmodel.CreationExtras
 import androidx.lifecycle.viewmodel.initializer
 import androidx.lifecycle.viewmodel.viewModelFactory
 import com.example.myapplication.MyApplication
+import com.example.myapplication.composeui.ViewModel.AuthorBooksViewModel
 import com.example.myapplication.composeui.ViewModel.AuthorDropDownViewModel
 import com.example.myapplication.composeui.ViewModel.AuthorEditViewModel
 import com.example.myapplication.composeui.ViewModel.AuthorListViewModel
 import com.example.myapplication.composeui.ViewModel.BookEditViewModel
 import com.example.myapplication.composeui.ViewModel.BookListViewModel
 import com.example.myapplication.composeui.ViewModel.BookPageViewModel
+import com.example.myapplication.composeui.ViewModel.LoginViewModel
 import com.example.myapplication.composeui.ViewModel.SearchPageViewModel
+import com.example.myapplication.composeui.ViewModel.UserBooksViewModel
 import com.example.myapplication.composeui.ViewModel.UserEditViewModel
 import com.example.myapplication.composeui.ViewModel.UserPageViewModel
+import com.example.myapplication.composeui.authenticator.AuthenticatorViewModel
 
 object AppViewModelProvider {
     val Factory = viewModelFactory {
@@ -69,6 +73,21 @@ object AppViewModelProvider {
                 myApplication().container.authorRestRepository
             )
         }
+        initializer {
+            AuthorBooksViewModel(
+                this.createSavedStateHandle(),
+                myApplication().container.bookRestRepository
+            )
+        }
+        initializer {
+            UserBooksViewModel(myApplication().container.bookRestRepository)
+        }
+        initializer {
+            AuthenticatorViewModel(myApplication().container.userRestRepository)
+        }
+        initializer {
+            LoginViewModel(myApplication().container.userRestRepository)
+        }
     }
 }
 
diff --git a/app/src/main/java/com/example/myapplication/composeui/AuthorBooks.kt b/app/src/main/java/com/example/myapplication/composeui/AuthorBooks.kt
new file mode 100644
index 0000000..45e3fd5
--- /dev/null
+++ b/app/src/main/java/com/example/myapplication/composeui/AuthorBooks.kt
@@ -0,0 +1,52 @@
+package com.example.myapplication.composeui
+
+import android.content.res.Configuration
+import androidx.compose.foundation.lazy.grid.GridCells
+import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.navigation.NavController
+import androidx.navigation.compose.rememberNavController
+import androidx.paging.compose.LazyPagingItems
+import androidx.paging.compose.collectAsLazyPagingItems
+import com.example.myapplication.composeui.ViewModel.AuthorBooksViewModel
+import com.example.myapplication.db.model.Book
+import com.example.myapplication.ui.theme.MyApplicationTheme
+import kotlinx.coroutines.launch
+
+@Composable
+fun AuthorBooks(navController: NavController, authorId: Int, viewModel: AuthorBooksViewModel = viewModel(factory = AppViewModelProvider.Factory)) {
+    val coroutineScope = rememberCoroutineScope()
+    val authorBooksUiState = viewModel.authorBooksUiState
+    val pagingBook: LazyPagingItems<Book> = viewModel.bookPagedData.collectAsLazyPagingItems()
+    LaunchedEffect(Unit) {
+        viewModel.refreshState()
+    }
+    fun refresh(){
+        coroutineScope.launch { viewModel.refreshState() }
+    }
+    LazyVerticalGrid(columns = GridCells.Adaptive(minSize = 180.dp)){
+        items (pagingBook.itemCount){
+                index -> BookCell(navController = navController, book = pagingBook[index]!!.copy())
+        }
+    }
+}
+
+@Preview(name = "Light Mode", showBackground = true, uiMode = Configuration.UI_MODE_NIGHT_NO)
+@Preview(name = "Dark Mode", showBackground = true, uiMode = Configuration.UI_MODE_NIGHT_YES)
+@Composable
+fun AuthorBooksPreview() {
+    MyApplicationTheme {
+        Surface(
+            color = MaterialTheme.colorScheme.background
+        ) {
+            AuthorBooks(navController = rememberNavController(), 0)
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/myapplication/composeui/AuthorCell.kt b/app/src/main/java/com/example/myapplication/composeui/AuthorCell.kt
index 95ffe12..cc31684 100644
--- a/app/src/main/java/com/example/myapplication/composeui/AuthorCell.kt
+++ b/app/src/main/java/com/example/myapplication/composeui/AuthorCell.kt
@@ -27,14 +27,17 @@ import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.asImageBitmap
 import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavController
 import com.example.myapplication.MainActivity
+import com.example.myapplication.R
 import com.example.myapplication.composeui.ViewModel.AuthorListViewModel
 import com.example.myapplication.composeui.navigation.Screen
 import com.example.myapplication.db.database.AppDatabase
 import com.example.myapplication.db.model.Author
+import com.example.myapplication.store.LiveStore
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.flow.firstOrNull
 import kotlinx.coroutines.launch
@@ -46,7 +49,7 @@ fun AuthorCell(navController: NavController?, author: Author, viewModel: AuthorL
     val context = LocalContext.current
     Column(modifier = Modifier
         .padding(all = 5.dp)
-        .requiredSize(170.dp, 100.dp)
+        .requiredSize(170.dp, 150.dp)
         .clip(RoundedCornerShape(10.dp))
         .border(1.dp, Color.LightGray, shape = RoundedCornerShape(10.dp))
     ) {
@@ -83,6 +86,14 @@ fun AuthorCell(navController: NavController?, author: Author, viewModel: AuthorL
                 )
             }
         }
-
+        Button(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(all = 10.dp),
+            onClick = {
+                navController?.navigate(Screen.AuthorBooks.route.replace("{id}", author.id.toString()))
+            }) {
+            Text(stringResource(id = R.string.books))
+        }
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/example/myapplication/composeui/AuthorEdit.kt b/app/src/main/java/com/example/myapplication/composeui/AuthorEdit.kt
index d06dd79..5247c96 100644
--- a/app/src/main/java/com/example/myapplication/composeui/AuthorEdit.kt
+++ b/app/src/main/java/com/example/myapplication/composeui/AuthorEdit.kt
@@ -33,7 +33,6 @@ import androidx.compose.ui.unit.dp
 import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavController
 import com.example.myapplication.R
-import com.example.myapplication.SingletonClass
 import com.example.myapplication.composeui.ViewModel.AuthorsListUiState
 import com.example.myapplication.composeui.ViewModel.AuthorsUiState
 import com.example.myapplication.composeui.ViewModel.AuthorDetails
diff --git a/app/src/main/java/com/example/myapplication/composeui/BookEdit.kt b/app/src/main/java/com/example/myapplication/composeui/BookEdit.kt
index 6917b38..e1db5c4 100644
--- a/app/src/main/java/com/example/myapplication/composeui/BookEdit.kt
+++ b/app/src/main/java/com/example/myapplication/composeui/BookEdit.kt
@@ -8,15 +8,12 @@ import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.Button
 import androidx.compose.material3.DropdownMenu
 import androidx.compose.material3.DropdownMenuItem
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.ExposedDropdownMenuBox
-import androidx.compose.material3.ExposedDropdownMenuDefaults
-import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextField
@@ -33,7 +30,6 @@ import androidx.compose.ui.unit.dp
 import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavController
 import com.example.myapplication.R
-import com.example.myapplication.SingletonClass
 import com.example.myapplication.composeui.ViewModel.AuthorDropDownViewModel
 import com.example.myapplication.composeui.ViewModel.AuthorsListUiState
 import com.example.myapplication.composeui.ViewModel.AuthorsUiState
@@ -42,6 +38,7 @@ import com.example.myapplication.composeui.ViewModel.BookEditViewModel
 import com.example.myapplication.composeui.ViewModel.BookUiState
 import com.example.myapplication.composeui.ViewModel.ImageUploader
 import com.example.myapplication.db.model.Author
+import com.example.myapplication.store.LiveStore
 import kotlinx.coroutines.launch
 
 @Composable
@@ -124,8 +121,7 @@ private fun BookEdit(
             )
         )
     }
-    var SingletonClass = SingletonClass()
-    onUpdate(bookUiState.bookDetails.copy(userId = SingletonClass.getUserId()))
+    onUpdate(bookUiState.bookDetails.copy(userId = LiveStore.getUserId()))
     Column(
         Modifier
             .fillMaxWidth()
diff --git a/app/src/main/java/com/example/myapplication/composeui/Enter.kt b/app/src/main/java/com/example/myapplication/composeui/Enter.kt
index d64648e..b8d460b 100644
--- a/app/src/main/java/com/example/myapplication/composeui/Enter.kt
+++ b/app/src/main/java/com/example/myapplication/composeui/Enter.kt
@@ -6,14 +6,19 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Check
+import androidx.compose.material.icons.filled.Close
 import androidx.compose.material3.Button
 import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.tooling.preview.Preview
@@ -25,41 +30,52 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.input.PasswordVisualTransformation
+import androidx.compose.ui.text.input.VisualTransformation
+import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.compose.rememberNavController
 import com.example.myapplication.MainActivity
-import com.example.myapplication.SingletonClass
-import com.example.myapplication.api.ServerService
+import com.example.myapplication.composeui.ViewModel.LoginViewModel
 import com.example.myapplication.composeui.navigation.Screen
-import com.example.myapplication.db.database.AppDatabase
-import com.example.myapplication.db.model.User
+import com.example.myapplication.store.PreferencesStore
 import com.example.myapplication.ui.theme.MyApplicationTheme
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.withContext
 import kotlinx.coroutines.launch
-import kotlinx.coroutines.GlobalScope
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
-fun Enter(navController: NavController) {
-    var SingletonClass = SingletonClass()
+fun Enter(navController: NavController, viewModel: LoginViewModel = viewModel(factory = AppViewModelProvider.Factory)) {
     val scope = rememberCoroutineScope()
     val context = LocalContext.current
-    val service: ServerService
-    var login by remember{mutableStateOf("")}
-    var password by remember{mutableStateOf("")}
+    val user = viewModel.signInUserState
     Column(
         Modifier
             .fillMaxWidth()
             .padding(all = 40.dp)) {
         Text(stringResource(id = R.string.login))
         OutlinedTextField(modifier = Modifier.fillMaxWidth(),
-            value = login, onValueChange = { login = it  },
+            value = user.details.login, onValueChange = { viewModel.updateState(user.details.copy(login = it)) },
         )
         Spacer(Modifier.padding(bottom = 10.dp))
         Text(stringResource(id = R.string.password))
+        var passwordVisible by rememberSaveable { mutableStateOf(false) }
         OutlinedTextField(modifier = Modifier.fillMaxWidth(),
-            value = password, onValueChange = { password = it },
+            value = user.details.password, onValueChange = { viewModel.updateState(user.details.copy(password = it)) },
+            visualTransformation = if (passwordVisible) VisualTransformation.None else PasswordVisualTransformation(),
+            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Password),
+            trailingIcon = {
+                val image = if (passwordVisible)
+                    Icons.Filled.Close
+                else Icons.Filled.Check
+
+                val description = if (passwordVisible) "Hide password" else "Show password"
+
+                IconButton(onClick = { passwordVisible = !passwordVisible }) {
+                    Icon(imageVector = image, description)
+                }
+            }
         )
         Spacer(Modifier.padding(bottom = 20.dp))
         Button(
@@ -68,15 +84,13 @@ fun Enter(navController: NavController) {
                 .padding(all = 10.dp),
             onClick = {
                 scope.launch {
-                    //if( AppDatabase.getInstance(context).userDao().tryLogin(login.toString(), password.toString()) != null){
-                   // SingletonClass.setUserId(AppDatabase.getInstance(context).userDao().tryLogin(login.toString(), password.toString())?.uid!!)
-                    //SingletonClass.setRole(AppDatabase.getInstance(context).userDao().tryLogin(login.toString(), password.toString())?.role!!)
-                    navController?.navigate(Screen.Profile.route)
-                //}
-                //else{
-                   // val toast = Toast.makeText(MainActivity.appContext, "Неверный логин или пароль", Toast.LENGTH_SHORT)
-                   // toast.show()
-                //}
+                    if(viewModel.signIn(context) != null) {
+                        navController?.navigate(Screen.Profile.route)
+                    }
+                    else{
+                        val toast = Toast.makeText(MainActivity.appContext, "Неверный логин или пароль", Toast.LENGTH_SHORT)
+                        toast.show()
+                    }
                 }
             }) {
             Text(stringResource(id = R.string.enter))
diff --git a/app/src/main/java/com/example/myapplication/composeui/Profile.kt b/app/src/main/java/com/example/myapplication/composeui/Profile.kt
index 216fa1e..8939f3c 100644
--- a/app/src/main/java/com/example/myapplication/composeui/Profile.kt
+++ b/app/src/main/java/com/example/myapplication/composeui/Profile.kt
@@ -1,66 +1,33 @@
 package com.example.myapplication.composeui
 
-import android.annotation.SuppressLint
 import android.content.res.Configuration
-import androidx.compose.foundation.BorderStroke
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.shape.CircleShape
-import androidx.compose.foundation.text.KeyboardOptions
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Close
-import androidx.compose.material.icons.filled.Create
-import androidx.compose.material.icons.filled.Edit
-import androidx.compose.material.icons.outlined.Clear
-import androidx.compose.material3.OutlinedTextField
-import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.Button
-import androidx.compose.material3.ButtonDefaults
-import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
-import androidx.compose.material3.TextButton
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.rememberCoroutineScope
-import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.layout.ContentScale
-import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.text.input.KeyboardType
-import androidx.compose.ui.text.input.PasswordVisualTransformation
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
-import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavController
 import androidx.navigation.compose.rememberNavController
 import com.example.myapplication.composeui.navigation.Screen
-import com.example.myapplication.db.database.AppDatabase
-import com.example.myapplication.db.model.User
 import com.example.myapplication.R
-import com.example.myapplication.SingletonClass
-import com.example.myapplication.composeui.ViewModel.UserPageViewModel
+import com.example.myapplication.store.LiveStore
 import com.example.myapplication.ui.theme.MyApplicationTheme
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.withContext
 
 @Composable
 fun Profile(navController: NavController) {
-    var SingletonClass = SingletonClass()
     Column(Modifier.padding(all = 40.dp)) {
         Image(
             painter = painterResource(id = R.drawable.user),
@@ -70,17 +37,22 @@ fun Profile(navController: NavController) {
                 .clickable(
                     enabled = true,
                     onClick = {
-                        navController?.navigate(
-                            Screen.ProfileEdit.route.replace(
-                                "{id}",
-                                SingletonClass.getUserId().toString()
-                            )
-                        )
+                        navController?.navigate(Screen.ProfileEdit.route.replace("{id}", LiveStore.getUserId().toString()))
                     }
                 )
         )
         Spacer (Modifier.padding(bottom = 10.dp))
         Text("Открыть профиль", modifier = Modifier.fillMaxWidth(), textAlign = TextAlign.Center)
+        Spacer(Modifier.padding(bottom = 20.dp))
+        Button(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(all = 10.dp),
+            onClick = {
+                navController?.navigate(Screen.UserBooks.route.replace("{id}", LiveStore.getUserId().toString()))
+            }) {
+            Text(stringResource(id = R.string.my_books))
+        }
     }
 }
 
diff --git a/app/src/main/java/com/example/myapplication/composeui/Registration.kt b/app/src/main/java/com/example/myapplication/composeui/Registration.kt
index 30d693e..a51dce9 100644
--- a/app/src/main/java/com/example/myapplication/composeui/Registration.kt
+++ b/app/src/main/java/com/example/myapplication/composeui/Registration.kt
@@ -5,8 +5,14 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Check
+import androidx.compose.material.icons.filled.Close
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Button
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Surface
@@ -22,49 +28,83 @@ import androidx.compose.runtime.setValue
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.input.PasswordVisualTransformation
+import androidx.compose.ui.text.input.VisualTransformation
+import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.compose.rememberNavController
 import com.example.myapplication.composeui.navigation.Screen
 import com.example.myapplication.ui.theme.MyApplicationTheme
 import com.example.myapplication.R
-import com.example.myapplication.db.database.AppDatabase
-import com.example.myapplication.db.model.User
+import com.example.myapplication.composeui.ViewModel.UserDetails
+import com.example.myapplication.composeui.ViewModel.UserEditViewModel
+import com.example.myapplication.composeui.ViewModel.UserUiState
+import com.example.myapplication.store.LiveStore
 import kotlinx.coroutines.launch
 
+@Composable
+fun Registration(navController: NavController, viewModel: UserEditViewModel = viewModel(factory = AppViewModelProvider.Factory)){
+    val scope = rememberCoroutineScope()
+    Registration(
+        navController = navController,
+        userUiState = viewModel.userUiState,
+        onClick = {
+            scope.launch {
+                viewModel.saveUser()
+                navController?.navigate(Screen.Enter.route)
+            }
+        },
+        onUpdate = viewModel::updateUiState
+    )
+}
+
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
-fun Registration(navController: NavController) {
-    val scope = rememberCoroutineScope()
-    val context = LocalContext.current
+private fun Registration(
+    navController: NavController,
+    userUiState: UserUiState,
+    onClick: () -> Unit,
+    onUpdate: (UserDetails) -> Unit
+) {
+    onUpdate(userUiState.userDetails.copy(role = "USER"))
     Column(Modifier.fillMaxWidth().padding(all = 40.dp)) {
-        var mail by remember{mutableStateOf("")}
         Text(stringResource(id = R.string.email))
         OutlinedTextField(modifier = Modifier.fillMaxWidth(),
-            value = mail, onValueChange = { mail = it },
+            value = userUiState.userDetails.email, onValueChange = { onUpdate(userUiState.userDetails.copy(email = it)) },
         )
         Spacer(Modifier.padding(bottom = 10.dp))
-        var login by remember{mutableStateOf("")}
         Text(stringResource(id = R.string.login))
         OutlinedTextField(modifier = Modifier.fillMaxWidth(),
-            value = login, onValueChange = { login = it },
+            value = userUiState.userDetails.login, onValueChange = { onUpdate(userUiState.userDetails.copy(login = it)) },
         )
         Spacer(Modifier.padding(bottom = 10.dp))
-        var password by remember{mutableStateOf("")}
+        var passwordVisible by rememberSaveable { mutableStateOf(false) }
         Text(stringResource(id = R.string.password))
         OutlinedTextField(modifier = Modifier.fillMaxWidth(),
-            value = password, onValueChange = { password = it },
+            value = userUiState.userDetails.password, onValueChange = { onUpdate(userUiState.userDetails.copy(password = it)) },
+            visualTransformation = if (passwordVisible) VisualTransformation.None else PasswordVisualTransformation(),
+            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Password),
+            trailingIcon = {
+                val image = if (passwordVisible)
+                    Icons.Filled.Close
+                else Icons.Filled.Check
+
+                val description = if (passwordVisible) "Hide password" else "Show password"
+
+                IconButton(onClick = { passwordVisible = !passwordVisible }) {
+                    Icon(imageVector = image, description)
+                }
+            }
         )
         Spacer(Modifier.padding(bottom = 20.dp))
         Button(
             modifier = Modifier
                 .fillMaxWidth()
                 .padding(all = 10.dp),
-            onClick = {
-                scope.launch{
-                    //AppDatabase.getInstance(context).userDao().insert(User(0, login.toString(), password.toString(), mail.toString(), "USER"))
-                }
-                navController?.navigate(Screen.Enter.route)
-            }) {
+            onClick = onClick
+        ) {
             Text(stringResource(id = R.string.create_acc))
         }
     }
diff --git a/app/src/main/java/com/example/myapplication/composeui/UserBooks.kt b/app/src/main/java/com/example/myapplication/composeui/UserBooks.kt
new file mode 100644
index 0000000..0bd59a1
--- /dev/null
+++ b/app/src/main/java/com/example/myapplication/composeui/UserBooks.kt
@@ -0,0 +1,52 @@
+package com.example.myapplication.composeui
+
+import android.content.res.Configuration
+import androidx.compose.foundation.lazy.grid.GridCells
+import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.navigation.NavController
+import androidx.navigation.compose.rememberNavController
+import androidx.paging.compose.LazyPagingItems
+import androidx.paging.compose.collectAsLazyPagingItems
+import com.example.myapplication.composeui.ViewModel.UserBooksViewModel
+import com.example.myapplication.db.model.Book
+import com.example.myapplication.ui.theme.MyApplicationTheme
+import kotlinx.coroutines.launch
+
+@Composable
+fun UserBooks(navController: NavController, userId: Int, viewModel: UserBooksViewModel = viewModel(factory = AppViewModelProvider.Factory)) {
+    val coroutineScope = rememberCoroutineScope()
+    val userBooksUiState = viewModel.userBooksUiState
+    val pagingBook: LazyPagingItems<Book> = viewModel.bookPagedData.collectAsLazyPagingItems()
+    LaunchedEffect(Unit) {
+        viewModel.refreshState()
+    }
+    fun refresh(){
+        coroutineScope.launch { viewModel.refreshState() }
+    }
+    LazyVerticalGrid(columns = GridCells.Adaptive(minSize = 180.dp)){
+        items (pagingBook.itemCount){
+                index -> BookCell(navController = navController, book = pagingBook[index]!!.copy())
+        }
+    }
+}
+
+@Preview(name = "Light Mode", showBackground = true, uiMode = Configuration.UI_MODE_NIGHT_NO)
+@Preview(name = "Dark Mode", showBackground = true, uiMode = Configuration.UI_MODE_NIGHT_YES)
+@Composable
+fun UserBooksPreview() {
+    MyApplicationTheme {
+        Surface(
+            color = MaterialTheme.colorScheme.background
+        ) {
+            UserBooks(navController = rememberNavController(), 0)
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/myapplication/composeui/ViewModel/AuthorBooksViewModel.kt b/app/src/main/java/com/example/myapplication/composeui/ViewModel/AuthorBooksViewModel.kt
new file mode 100644
index 0000000..1301fed
--- /dev/null
+++ b/app/src/main/java/com/example/myapplication/composeui/ViewModel/AuthorBooksViewModel.kt
@@ -0,0 +1,37 @@
+package com.example.myapplication.composeui.ViewModel
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.SavedStateHandle
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import androidx.paging.PagingData
+import androidx.paging.filter
+import com.example.myapplication.db.model.Book
+import com.example.myapplication.db.respository.BookRepository
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.launch
+
+class AuthorBooksViewModel(savedStateHandle: SavedStateHandle,  private val bookRepository: BookRepository) : ViewModel(){
+    private val authorUid: Int = checkNotNull(savedStateHandle["id"])
+    var authorBooksUiState by mutableStateOf(AuthorBooksUiState())
+        private set
+    init {
+        viewModelScope.launch {
+            refreshState()
+        }
+    }
+    suspend fun refreshState() {
+        authorBooksUiState = AuthorBooksUiState(bookRepository.getByUserId(authorUid))
+    }
+
+    val bookPagedData: Flow<PagingData<Book>> = bookRepository.loadAllBooksPaged().map{
+        x -> x.filter{
+            y-> (y.authorId == authorUid)
+        }
+    }
+}
+
+data class AuthorBooksUiState(val bookList: List<Book> = listOf())
\ No newline at end of file
diff --git a/app/src/main/java/com/example/myapplication/composeui/ViewModel/LoginViewModel.kt b/app/src/main/java/com/example/myapplication/composeui/ViewModel/LoginViewModel.kt
new file mode 100644
index 0000000..52fdc12
--- /dev/null
+++ b/app/src/main/java/com/example/myapplication/composeui/ViewModel/LoginViewModel.kt
@@ -0,0 +1,51 @@
+package com.example.myapplication.composeui.ViewModel
+
+import android.annotation.SuppressLint
+import android.content.Context
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.ViewModel
+import com.example.myapplication.db.model.User
+import com.example.myapplication.db.respository.UserRepository
+import com.example.myapplication.store.LiveStore
+import com.example.myapplication.store.PreferencesStore
+
+class LoginViewModel (
+    private val userRepository: UserRepository
+) : ViewModel() {
+    var signInUserState by mutableStateOf(SignInUserState())
+        private set
+
+    fun updateState(signInUserDetails: SignInUserDetails) {
+        signInUserState = SignInUserState(
+            details = signInUserDetails
+        )
+    }
+
+    @SuppressLint("SuspiciousIndentation")
+    suspend fun signIn(context: Context): User? {
+        val user: User? = userRepository.tryLogin(signInUserState.details.login, signInUserState.details.password)
+        if(user != null) {
+            val store = PreferencesStore(context)
+            store.setUid(user.uid.toString())
+            LiveStore.user.value = user.copy()
+        }
+        else{
+            return null
+        }
+        signInUserState = SignInUserState(
+            details = signInUserState.details,
+        )
+        return user
+    }
+}
+
+data class SignInUserDetails(
+    val login: String = "",
+    val password: String = ""
+)
+
+data class SignInUserState(
+    val details: SignInUserDetails = SignInUserDetails(),
+)
\ No newline at end of file
diff --git a/app/src/main/java/com/example/myapplication/composeui/ViewModel/UserBooksViewModel.kt b/app/src/main/java/com/example/myapplication/composeui/ViewModel/UserBooksViewModel.kt
new file mode 100644
index 0000000..134cf57
--- /dev/null
+++ b/app/src/main/java/com/example/myapplication/composeui/ViewModel/UserBooksViewModel.kt
@@ -0,0 +1,37 @@
+package com.example.myapplication.composeui.ViewModel
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import androidx.paging.PagingData
+import androidx.paging.filter
+import com.example.myapplication.db.model.Book
+import com.example.myapplication.db.respository.BookRepository
+import com.example.myapplication.store.LiveStore
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.launch
+
+class UserBooksViewModel(private val bookRepository: BookRepository) : ViewModel(){
+    private val userUid: Int = LiveStore.user.value?.uid ?: 0
+    var userBooksUiState by mutableStateOf(UserBooksUiState())
+        private set
+    init {
+        viewModelScope.launch {
+            refreshState()
+        }
+    }
+    suspend fun refreshState() {
+        userBooksUiState = UserBooksUiState(bookRepository.getByUserId(userUid))
+    }
+
+    val bookPagedData: Flow<PagingData<Book>> = bookRepository.loadAllBooksPaged().map{
+        x -> x.filter{
+            y-> (y.userId == userUid)
+        }
+    }
+}
+
+data class UserBooksUiState(val bookList: List<Book> = listOf())
\ No newline at end of file
diff --git a/app/src/main/java/com/example/myapplication/composeui/ViewModel/UserEditViewModel.kt b/app/src/main/java/com/example/myapplication/composeui/ViewModel/UserEditViewModel.kt
index 80135b9..f8fcfb4 100644
--- a/app/src/main/java/com/example/myapplication/composeui/ViewModel/UserEditViewModel.kt
+++ b/app/src/main/java/com/example/myapplication/composeui/ViewModel/UserEditViewModel.kt
@@ -9,6 +9,7 @@ import androidx.lifecycle.ViewModel
 import com.example.myapplication.db.respository.UserRepository
 import androidx.lifecycle.viewModelScope
 import com.example.myapplication.db.model.User
+import com.example.myapplication.store.LiveStore
 import kotlinx.coroutines.launch
 
 class UserEditViewModel(savedStateHandle: SavedStateHandle,
@@ -17,7 +18,7 @@ class UserEditViewModel(savedStateHandle: SavedStateHandle,
     var userUiState by mutableStateOf(UserUiState())
         private set
 
-    private val userUid: Int = checkNotNull(savedStateHandle["id"])
+    private val userUid: Int = LiveStore.user.value?.uid ?: 0
     init {
         viewModelScope.launch {
             if (userUid > 0) {
diff --git a/app/src/main/java/com/example/myapplication/composeui/ViewModel/UserPageViewModel.kt b/app/src/main/java/com/example/myapplication/composeui/ViewModel/UserPageViewModel.kt
index 796da85..3ed93a5 100644
--- a/app/src/main/java/com/example/myapplication/composeui/ViewModel/UserPageViewModel.kt
+++ b/app/src/main/java/com/example/myapplication/composeui/ViewModel/UserPageViewModel.kt
@@ -9,21 +9,21 @@ import androidx.lifecycle.SavedStateHandle
 import com.example.myapplication.db.model.User
 import kotlinx.coroutines.launch
 import com.example.myapplication.db.respository.UserRepository
+import com.example.myapplication.store.LiveStore
 
 
 class UserPageViewModel(savedStateHandle: SavedStateHandle, private val userRepository: UserRepository) : ViewModel(){
-    private val userId: Int = checkNotNull(savedStateHandle["id"])
     var userPageUiState by mutableStateOf(UserPageUiState())
         private set
     init {
         viewModelScope.launch {
-            if (userId > 0) {
+            if (LiveStore.user.value != null) {
                 refreshState()
             }
         }
     }
     suspend fun refreshState() {
-        userPageUiState = UserPageUiState(userRepository.getByUid(userId))
+        userPageUiState = UserPageUiState(LiveStore.user.value)
     }
 
 }
diff --git a/app/src/main/java/com/example/myapplication/composeui/authenticator/Authenticator.kt b/app/src/main/java/com/example/myapplication/composeui/authenticator/Authenticator.kt
new file mode 100644
index 0000000..74508eb
--- /dev/null
+++ b/app/src/main/java/com/example/myapplication/composeui/authenticator/Authenticator.kt
@@ -0,0 +1,38 @@
+package com.example.myapplication.composeui.authenticator
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.ui.platform.LocalContext
+import androidx.lifecycle.viewmodel.compose.viewModel
+import com.example.myapplication.store.LiveStore
+import com.example.myapplication.store.PreferencesStore
+import com.example.myapplication.composeui.AppViewModelProvider
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.launch
+
+@Composable
+fun Authenticator(
+    viewModel: AuthenticatorViewModel = viewModel(factory = AppViewModelProvider.Factory)
+) {
+    val context = LocalContext.current
+    val store = PreferencesStore(context)
+    val scope = rememberCoroutineScope()
+    val uid = store.getUid().collectAsState(initial = "").value
+
+    fun synchronize() {
+
+        scope.launch {
+            if (uid == "") {
+                LiveStore.user.value = null
+                return@launch
+            }
+            try {
+                viewModel.findUserByUid(uid.toInt())
+            }
+            catch (_: Exception){}
+        }
+    }
+
+    synchronize()
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/myapplication/composeui/authenticator/AuthenticatorViewModel.kt b/app/src/main/java/com/example/myapplication/composeui/authenticator/AuthenticatorViewModel.kt
new file mode 100644
index 0000000..62e4772
--- /dev/null
+++ b/app/src/main/java/com/example/myapplication/composeui/authenticator/AuthenticatorViewModel.kt
@@ -0,0 +1,21 @@
+package com.example.myapplication.composeui.authenticator
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.ViewModel
+import com.example.myapplication.db.model.User
+import com.example.myapplication.db.respository.UserRepository
+
+class AuthenticatorViewModel(
+    private val userRepository: UserRepository
+) : ViewModel() {
+    var authUiState by mutableStateOf(AuthenticatorUiState())
+        private set
+
+    suspend fun findUserByUid(uid: Int) {
+        authUiState = AuthenticatorUiState(userRepository.getByUid(uid))
+    }
+}
+
+data class AuthenticatorUiState(val user: User? = null)
\ No newline at end of file
diff --git a/app/src/main/java/com/example/myapplication/composeui/navigation/MainNavbar.kt b/app/src/main/java/com/example/myapplication/composeui/navigation/MainNavbar.kt
index dfddcb0..d6d74a8 100644
--- a/app/src/main/java/com/example/myapplication/composeui/navigation/MainNavbar.kt
+++ b/app/src/main/java/com/example/myapplication/composeui/navigation/MainNavbar.kt
@@ -36,6 +36,7 @@ import androidx.navigation.compose.rememberNavController
 import androidx.navigation.navArgument
 import com.example.myapplication.ui.theme.MyApplicationTheme
 import com.example.myapplication.R
+import com.example.myapplication.composeui.AuthorBooks
 import com.example.myapplication.composeui.Main
 import com.example.myapplication.composeui.Registration
 import com.example.myapplication.composeui.Enter
@@ -49,6 +50,7 @@ import com.example.myapplication.composeui.BookEdit
 import com.example.myapplication.composeui.BookSearch
 import com.example.myapplication.composeui.ListAuthors
 import com.example.myapplication.composeui.AuthorEdit
+import com.example.myapplication.composeui.UserBooks
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -163,6 +165,18 @@ fun Navhost(
         ) { backStackEntry ->
             backStackEntry.arguments?.let { BookSearch(navController = navController ,it.getString ("searchStr", "")) }
         }
+        composable(
+            Screen.AuthorBooks.route,
+            arguments = listOf(navArgument("id") { type = NavType.IntType })
+        ) { backStackEntry ->
+            backStackEntry.arguments?.let { AuthorBooks(navController = navController, it.getInt("id")) }
+        }
+        composable(
+            Screen.UserBooks.route,
+            arguments = listOf(navArgument("id") { type = NavType.IntType })
+        ) { backStackEntry ->
+            backStackEntry.arguments?.let { UserBooks(navController = navController, it.getInt("id")) }
+        }
     }
 }
 
diff --git a/app/src/main/java/com/example/myapplication/composeui/navigation/Screen.kt b/app/src/main/java/com/example/myapplication/composeui/navigation/Screen.kt
index bb09b80..7190e7f 100644
--- a/app/src/main/java/com/example/myapplication/composeui/navigation/Screen.kt
+++ b/app/src/main/java/com/example/myapplication/composeui/navigation/Screen.kt
@@ -46,6 +46,12 @@ enum class Screen(
     BookSearch(
         "book-search/{searchStr}", R.string.search, showInBottomBar = false
     ),
+    AuthorBooks(
+        "author-books/{id}", R.string.authors_books, showInBottomBar = false
+    ),
+    UserBooks(
+        "user-books/{id}", R.string.my_books, showInBottomBar = false
+    ),
     BookView(
         "book-view/{id}", R.string.book_view_title, showInBottomBar = false
     ),
diff --git a/app/src/main/java/com/example/myapplication/store/LiveStore.kt b/app/src/main/java/com/example/myapplication/store/LiveStore.kt
new file mode 100644
index 0000000..9d4d940
--- /dev/null
+++ b/app/src/main/java/com/example/myapplication/store/LiveStore.kt
@@ -0,0 +1,16 @@
+package com.example.myapplication.store
+
+import androidx.lifecycle.MutableLiveData
+import com.example.myapplication.db.model.User
+
+class LiveStore{
+    companion object{
+        val user = MutableLiveData<User?>(null)
+        fun getUserId(): Int{
+            return user.value?.uid ?: 0
+        }
+        fun getRole(): String{
+            return user.value?.role ?: "USER"
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/myapplication/store/PreferencesStore.kt b/app/src/main/java/com/example/myapplication/store/PreferencesStore.kt
new file mode 100644
index 0000000..0f22974
--- /dev/null
+++ b/app/src/main/java/com/example/myapplication/store/PreferencesStore.kt
@@ -0,0 +1,34 @@
+package com.example.myapplication.store
+
+import android.content.Context
+import androidx.datastore.core.DataStore
+import androidx.datastore.preferences.core.Preferences
+import androidx.datastore.preferences.core.edit
+import androidx.datastore.preferences.core.stringPreferencesKey
+import androidx.datastore.preferences.preferencesDataStore
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+
+class PreferencesStore(private val context: Context) {
+    companion object {
+        private val Context.dataStore: DataStore<Preferences> by preferencesDataStore("Store")
+        val UID = stringPreferencesKey("uid")
+    }
+
+    fun getUid(): Flow<String> {
+        return context.dataStore.data
+            .map { preferences ->
+                preferences[UID] ?: ""
+            }
+    }
+
+    private suspend fun saveStringValue(key: Preferences.Key<String>, value: String) {
+        context.dataStore.edit { preferences ->
+            preferences[key] = value
+        }
+    }
+
+    suspend fun setUid(uid: String) {
+        saveStringValue(UID, uid)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index c081f8f..483a438 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -12,21 +12,14 @@
     <string name="listauthors">Писатели</string>
     <string name="author">Писатель</string>
     <string name="book_view_title">Книга</string>
+    <string name="books">Книги</string>
+    <string name="my_books">Мои книги</string>
+    <string name="authors_books">Книги автора</string>
     <string name="enter">Войти</string>
     <string name="create_acc">Создать аккаунт</string>
     <string name="email">Почта</string>
     <string name="login">Логин</string>
     <string name="password">Пароль</string>
-    <string name="stats">
-        <p>Пользователь</p>\n
-        <p>User1</p>\n\n
-        <p>Дата регистрации</p>\n
-        <p>20.09.2023</p>\n\n
-        <p>Прочитано книг</p>\n
-        <p>7</p>\n\n
-        <p>Загружено книг</p>\n
-        <p>0</p>
-    </string>
     <string name="book_title">Название</string>
     <string name="author_name">Автор</string>
     <string name="description">Содержание</string>
@@ -37,5 +30,4 @@
     <string name="load_book">Загрузить</string>
     <string name="add_book">Добавить</string>
     <string name="read_book">Читать</string>
-    <string name="help_me_pls">Вы можете помочь нашей библиотеке, загрузив свою книгу.</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/xml/network_security_config.xml b/app/src/main/res/xml/network_security_config.xml
index 1a66794..53d4a5a 100644
--- a/app/src/main/res/xml/network_security_config.xml
+++ b/app/src/main/res/xml/network_security_config.xml
@@ -3,6 +3,6 @@
     <domain-config cleartextTrafficPermitted="true">
         <domain includeSubdomains="true">100.87.48.148</domain>
         <domain includeSubdomains="true">192.168.43.198</domain>
-        <domain includeSubdomains="true">89.239.172.45</domain>
+        <domain includeSubdomains="true">89.239.174.67</domain>
     </domain-config>
 </network-security-config>
\ No newline at end of file