diff --git a/ComputerShopBusinessLogic/BusinessLogics/UserLogic.cs b/ComputerShopBusinessLogic/BusinessLogics/UserLogic.cs
new file mode 100644
index 0000000..5bafe23
--- /dev/null
+++ b/ComputerShopBusinessLogic/BusinessLogics/UserLogic.cs
@@ -0,0 +1,137 @@
+using ComputerShopContracts.BindingModels;
+using ComputerShopContracts.BusinessLogicContracts;
+using ComputerShopContracts.SearchModels;
+using ComputerShopContracts.StorageContracts;
+using ComputerShopContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputerShopBusinessLogic.BusinessLogics
+{
+	public class UserLogic : IUserLogic
+	{
+		private readonly ILogger _logger;
+		private readonly IUserStorage _userStorage;
+
+		public UserLogic(ILogger<IUserLogic> logger, IUserStorage userStorage)
+		{
+			_logger = logger;
+			_userStorage = userStorage;
+		}
+
+		//!!!мб поменять текст для логов 
+		public List<UserViewModel>? ReadList(UserSearchModel? model)
+		{
+			_logger.LogInformation("User ReadList. Login:{Login}  Emain:{Email}  Id:{Id}", model?.Login, model?.Email, model?.Id);
+			var list = model == null ? _userStorage.GetFullList() : _userStorage.GetFilteredList(model);
+			if (list == null)
+			{
+				_logger.LogWarning("ReadList return null list");
+				return null;
+			}
+			_logger.LogInformation("ReadList. Count:{Count}", list.Count);
+			return list;
+		}
+
+		public UserViewModel? ReadElement(UserSearchModel model)
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			_logger.LogInformation("ReadElement. Login:{Login}. Email:{Email}.  Id:{Id}", model?.Login, model?.Email, model?.Id);
+			var element = _userStorage.GetElement(model);
+			if (element == null)
+			{
+				_logger.LogWarning("ReadElement element not found");
+				return null;
+			}
+			_logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+			return element;
+		}
+
+		public bool Create(UserBindingModel model)
+		{
+			CheckModel(model);
+			if (_userStorage.Insert(model) == null)
+			{
+				_logger.LogWarning("Insert operation failed");
+				return false;
+			}
+			return true;
+		}
+
+		public bool Update(UserBindingModel model)
+		{
+			CheckModel(model);
+			if (_userStorage.Update(model) == null)
+			{
+				_logger.LogWarning("Update operation failed");
+				return false;
+			}
+			return true;
+		}
+
+		public bool Delete(UserBindingModel model)
+		{
+			CheckModel(model, false);
+			_logger.LogInformation("Delete. Id:{Id}", model.Id);
+			if (_userStorage.Delete(model) == null)
+			{
+				_logger.LogWarning("Delete operation failed");
+				return false;
+			}
+			return true;
+		}
+
+		private void CheckModel(UserBindingModel model, bool withParams = true)
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			if (!withParams)
+			{
+				return;
+			}
+			if (string.IsNullOrEmpty(model.Login))
+			{
+				throw new ArgumentNullException("Нет логина пользователя", nameof(model.Login));
+			}
+			if (string.IsNullOrEmpty(model.Password))
+			{
+				throw new ArgumentNullException("Нет пароля пользователя", nameof(model.Password));
+			}
+			if (string.IsNullOrEmpty(model.Email))
+			{
+				throw new ArgumentNullException("Нет почты пользователя", nameof(model.Email));
+			}
+			//Проверка на уникальность. Проверить одной сущностью или 2-мя (один с таким же логином, второй с такой же почтой)?
+
+			//проверка уникальности логина
+			var user1 = _userStorage.GetElement(new UserSearchModel
+			{
+				Login = model.Login
+			});
+
+			if (user1 != null && user1.Id != model.Id)
+			{
+				throw new InvalidOperationException("Пользователь с таким логином уже есть");
+			}
+
+			//проверка уникальности почты
+			var user2 = _userStorage.GetElement(new UserSearchModel
+			{
+				Email = model.Email
+			});
+
+			if (user2 != null && user2.Id != model.Id) {
+				throw new InvalidOperationException("Пользователь с такой почтой уже есть");
+			}
+		}
+	}
+}
diff --git a/ComputerShopBusinessLogic/ComputerShopBusinessLogic.csproj b/ComputerShopBusinessLogic/ComputerShopBusinessLogic.csproj
index bb69535..4a07bc8 100644
--- a/ComputerShopBusinessLogic/ComputerShopBusinessLogic.csproj
+++ b/ComputerShopBusinessLogic/ComputerShopBusinessLogic.csproj
@@ -14,8 +14,4 @@
     <ProjectReference Include="..\ComputerShopContracts\ComputerShopContracts.csproj" />
   </ItemGroup>
 
-  <ItemGroup>
-    <Folder Include="BusinessLogics\" />
-  </ItemGroup>
-
 </Project>
diff --git a/ComputerShopDatabaseImplement/Implements/UserStorage.cs b/ComputerShopDatabaseImplement/Implements/UserStorage.cs
new file mode 100644
index 0000000..eeabf9a
--- /dev/null
+++ b/ComputerShopDatabaseImplement/Implements/UserStorage.cs
@@ -0,0 +1,80 @@
+using ComputerShopContracts.BindingModels;
+using ComputerShopContracts.SearchModels;
+using ComputerShopContracts.StorageContracts;
+using ComputerShopContracts.ViewModels;
+using ComputerShopDatabaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputerShopDatabaseImplement.Implements
+{
+	public class UserStorage : IUserStorage
+	{
+		//!!!ТУТ МБ РАЗДЕЛИТЬ НА 2 МЕТОДА: исполнителя и поручителя и добавить where
+		public List<UserViewModel> GetFullList()
+		{
+			using var context = new ComputerShopDatabase();
+			return context.Users.Select(x => x.GetViewModel).ToList();
+		}
+
+		//!!!ТУТ МБ РАЗДЕЛИТЬ НА 2 МЕТОДА: исполнителя и поручителя и добавить where
+		//!!!ДОПИСАТЬ
+		public List<UserViewModel> GetFilteredList(UserSearchModel model)
+		{
+			if (string.IsNullOrEmpty(model.Login))
+			{
+				return new();
+			}
+			using var context = new ComputerShopDatabase();
+			
+		}
+
+		//!!!ДОПИСАТЬ
+		public UserViewModel? GetElement(UserSearchModel model)
+		{
+
+		}
+
+		public UserViewModel? Insert(UserBindingModel model)
+		{
+			var newUser = User.Create(model);
+			if (newUser == null)
+			{
+				return null;
+			}
+			using var context = new ComputerShopDatabase();
+			context.Users.Add(newUser);
+			context.SaveChanges();
+			return newUser.GetViewModel;
+		}
+
+		public UserViewModel? Update(UserBindingModel model)
+		{
+			using var context = new ComputerShopDatabase();
+			var user = context.Users.FirstOrDefault(x => x.Id == model.Id);
+			if (user == null)
+			{
+				return null;
+			}
+			user.Update(model);
+			context.SaveChanges();
+			return user.GetViewModel;
+		}
+
+		public UserViewModel? Delete(UserBindingModel model)
+		{
+			using var context = new ComputerShopDatabase();
+			var implementer = context.Users.FirstOrDefault(rec => rec.Id == model.Id);
+			if (implementer != null)
+			{
+				context.Users.Remove(implementer);
+				context.SaveChanges();
+				return implementer.GetViewModel;
+			}
+			return null;
+		}
+	}
+}