diff --git a/TravelAgency/TravelAgency.sln b/TravelAgency/TravelAgency.sln
index e0b7e33..f46f2dd 100644
--- a/TravelAgency/TravelAgency.sln
+++ b/TravelAgency/TravelAgency.sln
@@ -7,7 +7,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TravelAgencyDataModels", "T
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TravelAgencyContracts", "TravelAgencyContracts\TravelAgencyContracts.csproj", "{5A5C7696-4047-4BB8-BEC3-9DDB4000394E}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TravelAgencyDatabaseImplement", "TravelAgencyDatabaseImplement\TravelAgencyDatabaseImplement.csproj", "{7F470B39-8E7F-4F32-A79F-CB77FDAEE513}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TravelAgencyDatabaseImplement", "TravelAgencyDatabaseImplement\TravelAgencyDatabaseImplement.csproj", "{7F470B39-8E7F-4F32-A79F-CB77FDAEE513}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TravelAgencyBusinessLogic", "TravelAgencyBusinessLogic\TravelAgencyBusinessLogic.csproj", "{AA81731F-6DB3-4BA0-98AF-E319788D7388}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -27,6 +29,10 @@ Global
 		{7F470B39-8E7F-4F32-A79F-CB77FDAEE513}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{7F470B39-8E7F-4F32-A79F-CB77FDAEE513}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{7F470B39-8E7F-4F32-A79F-CB77FDAEE513}.Release|Any CPU.Build.0 = Release|Any CPU
+		{AA81731F-6DB3-4BA0-98AF-E319788D7388}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{AA81731F-6DB3-4BA0-98AF-E319788D7388}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{AA81731F-6DB3-4BA0-98AF-E319788D7388}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{AA81731F-6DB3-4BA0-98AF-E319788D7388}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/ExcursionGroupLogic.cs b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/ExcursionGroupLogic.cs
new file mode 100644
index 0000000..5761f1f
--- /dev/null
+++ b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/ExcursionGroupLogic.cs
@@ -0,0 +1,119 @@
+using Microsoft.Extensions.Logging;
+using TravelAgencyContracts.BindingModels;
+using TravelAgencyContracts.BusinessLogicsContracts;
+using TravelAgencyContracts.SearchModels;
+using TravelAgencyContracts.StoragesContracts;
+using TravelAgencyContracts.ViewModels;
+
+namespace TravelAgencyBusinessLogic.BusinessLogics
+{
+    public class ExcursionGroupLogic : IExcursionGroupLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly IExcursionGroupStorage _excursionGroupStorage;
+
+        public ExcursionGroupLogic(ILogger<ExcursionGroupLogic> logger, IExcursionGroupStorage excursionGroupStorage)
+        {
+            _logger = logger;
+            _excursionGroupStorage = excursionGroupStorage;
+        }
+
+        public List<ExcursionGroupViewModel>? ReadList(ExcursionGroupSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id: {Id}, ExcursionGroupName: {ExcursionGroupName}, UserId: {UserId}, GuideId: {GuideId}.", model?.Id, model?.ExcursionGroupName, model?.UserId, model?.GuideId);
+            var list = (model == null) ? _excursionGroupStorage.GetFullList() : _excursionGroupStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count: {Count}", list.Count);
+            return list;
+        }
+
+        public ExcursionGroupViewModel? ReadElement(ExcursionGroupSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. ExcursionGroup id: {Id}, ExcursionGroup name: {ExcursionGroupName}", model?.Id, model?.ExcursionGroupName);
+            var element = _excursionGroupStorage.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(ExcursionGroupBindingModel model)
+        {
+            CheckModel(model);
+            if (_excursionGroupStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(ExcursionGroupBindingModel model)
+        {
+            CheckModel(model);
+            if (_excursionGroupStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(ExcursionGroupBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id: {Id}", model.Id);
+            if (_excursionGroupStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(ExcursionGroupBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.ExcursionGroupName))
+            {
+                throw new ArgumentNullException("Нет названия группы", nameof(model.ExcursionGroupName));
+            }
+            if (model.ParticipantsAmount <= 0)
+            {
+                throw new ArgumentNullException("Количество участников быть больше 0", nameof(model.ParticipantsAmount));
+            }
+            if (model.UserId <= 0)
+            {
+                throw new ArgumentNullException("Некорректный идентификатор пользователя", nameof(model.UserId));
+            }
+            _logger.LogInformation("ExcursionGroup. Id: {id}, ExcursionGroupName: {ExcursionGroupName}, ParticipantsAmount: {ParticipantsAmount}, UserId: {UserId}", model.Id, model.ExcursionGroupName, model.ParticipantsAmount, model.UserId);
+            var element = _excursionGroupStorage.GetElement(new ExcursionGroupSearchModel
+            {
+                ExcursionGroupName = model.ExcursionGroupName
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Группа с таким названием уже есть");
+            }
+        }
+    }
+}
diff --git a/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/ExcursionLogic.cs b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/ExcursionLogic.cs
new file mode 100644
index 0000000..5d94297
--- /dev/null
+++ b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/ExcursionLogic.cs
@@ -0,0 +1,119 @@
+using Microsoft.Extensions.Logging;
+using TravelAgencyContracts.BindingModels;
+using TravelAgencyContracts.BusinessLogicsContracts;
+using TravelAgencyContracts.SearchModels;
+using TravelAgencyContracts.StoragesContracts;
+using TravelAgencyContracts.ViewModels;
+
+namespace TravelAgencyBusinessLogic.BusinessLogics
+{
+    public class ExcursionLogic : IExcursionLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly IExcursionStorage _excursionStorage;
+
+        public ExcursionLogic(ILogger<ExcursionLogic> logger, IExcursionStorage excursionStorage)
+        {
+            _logger = logger;
+            _excursionStorage = excursionStorage;
+        }
+
+        public List<ExcursionViewModel>? ReadList(ExcursionSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id: {Id}, ExcursionName: {ExcursionName}, UserId: {UserId}.", model?.Id, model?.ExcursionName, model?.UserId);
+            var list = (model == null) ? _excursionStorage.GetFullList() : _excursionStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count: {Count}", list.Count);
+            return list;
+        }
+
+        public ExcursionViewModel? ReadElement(ExcursionSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Excursion id: {Id}, Excursion name: {ExcursionName}", model?.Id, model?.ExcursionName);
+            var element = _excursionStorage.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(ExcursionBindingModel model)
+        {
+            CheckModel(model);
+            if (_excursionStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(ExcursionBindingModel model)
+        {
+            CheckModel(model);
+            if (_excursionStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(ExcursionBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id: {Id}", model.Id);
+            if (_excursionStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(ExcursionBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.ExcursionName))
+            {
+                throw new ArgumentNullException("Нет названия экскурсии", nameof(model.ExcursionName));
+            }
+            if (model.Price <= 0)
+            {
+                throw new ArgumentNullException("Цена экскурсии должна быть больше 0", nameof(model.Price));
+            }
+            if (model.UserId <= 0)
+            {
+                throw new ArgumentNullException("Некорректный идентификатор пользователя", nameof(model.UserId));
+            }
+            _logger.LogInformation("Excursion. Id: {id}, ExcursionName: {ExcursionName}, Price: {Price}, UserId: {UserId}", model.Id, model.ExcursionName, model.Price, model.UserId);
+            var element = _excursionStorage.GetElement(new ExcursionSearchModel
+            {
+                ExcursionName = model.ExcursionName
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Экскурсия с таким названием уже есть");
+            }
+        }
+    }
+}
diff --git a/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/GuideLogic.cs b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/GuideLogic.cs
new file mode 100644
index 0000000..b84c5b4
--- /dev/null
+++ b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/GuideLogic.cs
@@ -0,0 +1,120 @@
+using Microsoft.Extensions.Logging;
+using TravelAgencyContracts.BindingModels;
+using TravelAgencyContracts.BusinessLogicsContracts;
+using TravelAgencyContracts.SearchModels;
+using TravelAgencyContracts.StoragesContracts;
+using TravelAgencyContracts.ViewModels;
+
+namespace TravelAgencyBusinessLogic.BusinessLogics
+{
+    public class GuideLogic : IGuideLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly IGuideStorage _guideStorage;
+
+        public GuideLogic(ILogger<GuideLogic> logger, IGuideStorage guideStorage)
+        {
+            _logger = logger;
+            _guideStorage = guideStorage;
+        }
+
+        public List<GuideViewModel>? ReadList(GuideSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. GuideFIO: {GuideFIO}. Id: {Id} ", model?.GuideFIO, model?.Id);
+            var list = (model == null) ? _guideStorage.GetFullList() : _guideStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count: {Count}", list.Count);
+            return list;
+        }
+
+        public GuideViewModel? ReadElement(GuideSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Guide id: {Id}, Guide email: {Email}, Guide phone number: {PhoneNumber}", model?.Id, model?.Email, model?.PhoneNumber);
+            var element = _guideStorage.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(GuideBindingModel model)
+        {
+            CheckModel(model);
+            if (_guideStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(GuideBindingModel model)
+        {
+            CheckModel(model);
+            if (_guideStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(GuideBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id: {Id}", model.Id);
+            if (_guideStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(GuideBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.GuideFIO))
+            {
+                throw new ArgumentNullException("Нет ФИО гида", nameof(model.GuideFIO));
+            }
+            if (string.IsNullOrEmpty(model.Email))
+            {
+                throw new ArgumentNullException("Нет почты гида", nameof(model.Email));
+            }
+            if (string.IsNullOrEmpty(model.PhoneNumber))
+            {
+                throw new ArgumentNullException("Нет номера телефона гида", nameof(model.Email));
+            }
+            _logger.LogInformation("Guide. Id: {id}, FIO: {fio}, email: {email}", model.Id, model.GuideFIO, model.Email);
+            var element = _guideStorage.GetElement(new GuideSearchModel
+            {
+                Email = model.Email,
+                PhoneNumber = model.PhoneNumber,
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Гид с такой почтой или номером телефона уже есть");
+            }
+        }
+    }
+}
diff --git a/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/PlaceLogic.cs b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/PlaceLogic.cs
new file mode 100644
index 0000000..c1d42d7
--- /dev/null
+++ b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/PlaceLogic.cs
@@ -0,0 +1,119 @@
+using Microsoft.Extensions.Logging;
+using TravelAgencyContracts.BindingModels;
+using TravelAgencyContracts.BusinessLogicsContracts;
+using TravelAgencyContracts.SearchModels;
+using TravelAgencyContracts.StoragesContracts;
+using TravelAgencyContracts.ViewModels;
+
+namespace TravelAgencyBusinessLogic.BusinessLogics
+{
+    public class PlaceLogic : IPlaceLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly IPlaceStorage _placeStorage;
+
+        public PlaceLogic(ILogger<PlaceLogic> logger, IPlaceStorage placeStorage)
+        {
+            _logger = logger;
+            _placeStorage = placeStorage;
+        }
+
+        public List<PlaceViewModel>? ReadList(PlaceSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id: {Id}, PlaceName: {PlaceName}, ExcursionId: {ExcursionId}.", model?.Id, model?.PlaceName, model?.ExcursionId);
+            var list = (model == null) ? _placeStorage.GetFullList() : _placeStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count: {Count}", list.Count);
+            return list;
+        }
+
+        public PlaceViewModel? ReadElement(PlaceSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Place id: {Id}, Place name: {PlaceName}, Place address: {PlaceAddress}", model?.Id, model?.PlaceName, model?.PlaceAddress);
+            var element = _placeStorage.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(PlaceBindingModel model)
+        {
+            CheckModel(model);
+            if (_placeStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(PlaceBindingModel model)
+        {
+            CheckModel(model);
+            if (_placeStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(PlaceBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id: {Id}", model.Id);
+            if (_placeStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(PlaceBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.PlaceName))
+            {
+                throw new ArgumentNullException("Нет названия места", nameof(model.PlaceName));
+            }
+            if (string.IsNullOrEmpty(model.PlaceAddress))
+            {
+                throw new ArgumentNullException("Нет адреса места", nameof(model.PlaceAddress));
+            }
+            if (model.ExcursionId <= 0)
+            {
+                throw new ArgumentNullException("Некорректный идентификатор экскурсии", nameof(model.ExcursionId));
+            }
+            _logger.LogInformation("Place. Id: {id}, PlaceName: {PlaceName}, PlaceAddress: {PlaceAddress}, ExcursionId: {ExcursionId}", model.Id, model.PlaceName, model.PlaceAddress, model.ExcursionId);
+            var element = _placeStorage.GetElement(new PlaceSearchModel
+            {
+                PlaceName = model.PlaceName,
+                PlaceAddress = model.PlaceAddress
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Место с таким названием или адресом уже есть");
+            }
+        }
+}
diff --git a/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/TourLogic.cs b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/TourLogic.cs
new file mode 100644
index 0000000..2567fed
--- /dev/null
+++ b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/TourLogic.cs
@@ -0,0 +1,123 @@
+using Microsoft.Extensions.Logging;
+using TravelAgencyContracts.BindingModels;
+using TravelAgencyContracts.BusinessLogicsContracts;
+using TravelAgencyContracts.SearchModels;
+using TravelAgencyContracts.StoragesContracts;
+using TravelAgencyContracts.ViewModels;
+
+namespace TravelAgencyBusinessLogic.BusinessLogics
+{
+    public class TourLogic : ITourLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly ITourStorage _tourStorage;
+
+        public TourLogic(ILogger<TourLogic> logger, ITourStorage tourStorage)
+        {
+            _logger = logger;
+            _tourStorage = tourStorage;
+        }
+
+        public List<TourViewModel>? ReadList(TourSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id: {Id}, TourName: {TourName}, UserId: {UserId}.", model?.Id, model?.TourName, model?.UserId);
+            var list = (model == null) ? _tourStorage.GetFullList() : _tourStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count: {Count}", list.Count);
+            return list;
+        }
+
+        public TourViewModel? ReadElement(TourSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Tour id: {Id}, Tour name: {TourName}", model?.Id, model?.TourName);
+            var element = _tourStorage.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(TourBindingModel model)
+        {
+            CheckModel(model);
+            if (_tourStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(TourBindingModel model)
+        {
+            CheckModel(model);
+            if (_tourStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(TourBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id: {Id}", model.Id);
+            if (_tourStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(TourBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.TourName))
+            {
+                throw new ArgumentNullException("Нет названия тура", nameof(model.TourName));
+            }
+            if (model.TourDate == DateTime.MinValue)
+            {
+                throw new ArgumentNullException("Нет даты тура", nameof(model.TourDate));
+            }
+            if (model.Price <= 0)
+            {
+                throw new ArgumentNullException("Цена тура должна быть больше 0", nameof(model.Price));
+            }
+            if (model.UserId <= 0)
+            {
+                throw new ArgumentNullException("Некорректный идентификатор пользователя", nameof(model.UserId));
+            }
+            _logger.LogInformation("Tour. Id: {id}, TourName: {TourName}, Price: {Price}, UserId: {UserId}", model.Id, model.TourName, model.Price, model.UserId);
+            var element = _tourStorage.GetElement(new TourSearchModel
+            {
+                TourName = model.TourName
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Тур с таким названием уже есть");
+            }
+        }
+    }
+}
diff --git a/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/TripLogic.cs b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/TripLogic.cs
new file mode 100644
index 0000000..9d6860e
--- /dev/null
+++ b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/TripLogic.cs
@@ -0,0 +1,119 @@
+using Microsoft.Extensions.Logging;
+using TravelAgencyContracts.BindingModels;
+using TravelAgencyContracts.BusinessLogicsContracts;
+using TravelAgencyContracts.SearchModels;
+using TravelAgencyContracts.StoragesContracts;
+using TravelAgencyContracts.ViewModels;
+
+namespace TravelAgencyBusinessLogic.BusinessLogics
+{
+    public class TripLogic : ITripLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly ITripStorage _tripStorage;
+
+        public TripLogic(ILogger<TripLogic> logger, ITripStorage tripStorage)
+        {
+            _logger = logger;
+            _tripStorage = tripStorage;
+        }
+
+        public List<TripViewModel>? ReadList(TripSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id: {Id}, TripName: {TripName}, GuideId: {GuideId}.", model?.Id, model?.TripName, model?.GuideId);
+            var list = (model == null) ? _tripStorage.GetFullList() : _tripStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count: {Count}", list.Count);
+            return list;
+        }
+
+        public TripViewModel? ReadElement(TripSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Trip id: {Id}, Trip name: {TripName}", model?.Id, model?.TripName);
+            var element = _tripStorage.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(TripBindingModel model)
+        {
+            CheckModel(model);
+            if (_tripStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(TripBindingModel model)
+        {
+            CheckModel(model);
+            if (_tripStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(TripBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id: {Id}", model.Id);
+            if (_tripStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(TripBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.TripName))
+            {
+                throw new ArgumentNullException("Нет названия поездки", nameof(model.TripName));
+            }
+            if (model.TripDate == DateTime.MinValue)
+            {
+                throw new ArgumentNullException("Нет даты поездки", nameof(model.TripDate));
+            }
+            if (model.GuideId <= 0)
+            {
+                throw new ArgumentNullException("Некорректный идентификатор гида", nameof(model.GuideId));
+            }
+            _logger.LogInformation("Trip. Id: {id}, TripName: {TripName}, GuideId: {GuideId}", model.Id, model.TripName, model.GuideId);
+            var element = _tripStorage.GetElement(new TripSearchModel
+            {
+                TripName = model.TripName
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Поездка с таким названием уже есть");
+            }
+        }
+    }
+}
diff --git a/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/UserLogic.cs b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/UserLogic.cs
new file mode 100644
index 0000000..cfdf395
--- /dev/null
+++ b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/UserLogic.cs
@@ -0,0 +1,125 @@
+using Microsoft.Extensions.Logging;
+using TravelAgencyContracts.BindingModels;
+using TravelAgencyContracts.BusinessLogicsContracts;
+using TravelAgencyContracts.SearchModels;
+using TravelAgencyContracts.StoragesContracts;
+using TravelAgencyContracts.ViewModels;
+
+namespace TravelAgencyBusinessLogic.BusinessLogics
+{
+    public class UserLogic : IUserLogic
+    {
+        private readonly ILogger _logger;
+
+        private readonly IUserStorage _userStorage;
+
+        public UserLogic(ILogger<UserLogic> logger, IUserStorage userStorage)
+        {
+            _logger = logger;
+            _userStorage = userStorage;
+        }
+
+        public List<UserViewModel>? ReadList(UserSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. UserFIO: {UserFIO}. Id: {Id} ", model?.UserFIO, 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. User id: {Id}, User email: {Email}, User phone number: {PhoneNumber}, User password: {Password}", model?.Id, model?.Email, model?.PhoneNumber, model?.Password);
+            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.UserFIO))
+            {
+                throw new ArgumentNullException("Нет ФИО пользователя", nameof(model.UserFIO));
+            }
+            if (string.IsNullOrEmpty(model.Email))
+            {
+                throw new ArgumentNullException("Нет логина(почты) пользователя", nameof(model.Email));
+            }
+            if (string.IsNullOrEmpty(model.PhoneNumber))
+            {
+                throw new ArgumentNullException("Нет номера телефона пользователя", nameof(model.Email));
+            }
+            if (string.IsNullOrEmpty(model.Password))
+            {
+                throw new ArgumentNullException("Нет пароля пользователя", nameof(model.Password));
+            }
+            _logger.LogInformation("User. Id: {id}, FIO: {fio}, email: {email}, phone number: {PhoneNumber}, password: {password}", model.Id, model.UserFIO, model.Email, model.PhoneNumber,
+                model.Password);
+            var element = _userStorage.GetElement(new UserSearchModel
+            {
+                Email = model.Email,
+                PhoneNumber = model.PhoneNumber,
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Пользователь с таким логином(почтой) или номером телефона уже есть");
+            }
+        }
+    }
+}
diff --git a/TravelAgency/TravelAgencyBusinessLogic/TravelAgencyBusinessLogic.csproj b/TravelAgency/TravelAgencyBusinessLogic/TravelAgencyBusinessLogic.csproj
new file mode 100644
index 0000000..bc89be4
--- /dev/null
+++ b/TravelAgency/TravelAgencyBusinessLogic/TravelAgencyBusinessLogic.csproj
@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\TravelAgencyContracts\TravelAgencyContracts.csproj" />
+  </ItemGroup>
+
+</Project>
diff --git a/TravelAgency/TravelAgencyDatabaseImplement/Implements/ExcursionGroupStorage.cs b/TravelAgency/TravelAgencyDatabaseImplement/Implements/ExcursionGroupStorage.cs
index 62f63b3..1eccb28 100644
--- a/TravelAgency/TravelAgencyDatabaseImplement/Implements/ExcursionGroupStorage.cs
+++ b/TravelAgency/TravelAgencyDatabaseImplement/Implements/ExcursionGroupStorage.cs
@@ -24,12 +24,10 @@ namespace TravelAgencyDatabaseImplement.Implements
 
         public List<ExcursionGroupViewModel> GetFilteredList(ExcursionGroupSearchModel model)
         {
-            if (string.IsNullOrEmpty(model.ExcursionGroupName))
-            {
-                return new();
-            }
             using var context = new TravelAgencyDatabase();
-            return context.ExcursionGroups
+            if (!string.IsNullOrEmpty(model.ExcursionGroupName))
+            {
+                return context.ExcursionGroups
                     .Include(x => x.User)
                     .Include(x => x.Guide)
                     .Include(x => x.Tours)
@@ -38,6 +36,32 @@ namespace TravelAgencyDatabaseImplement.Implements
                     .ToList()
                     .Select(x => x.GetViewModel)
                     .ToList();
+            }
+            if (model.UserId.HasValue)
+            {
+                return context.ExcursionGroups
+                    .Include(x => x.User)
+                    .Include(x => x.Guide)
+                    .Include(x => x.Tours)
+                    .ThenInclude(x => x.Tour)
+                    .Where(x => x.UserId.Equals(model.UserId))
+                    .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+            }
+            if (model.GuideId.HasValue)
+            {
+                return context.ExcursionGroups
+                    .Include(x => x.User)
+                    .Include(x => x.Guide)
+                    .Include(x => x.Tours)
+                    .ThenInclude(x => x.Tour)
+                    .Where(x => x.GuideId.Equals(model.GuideId))
+                    .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+            }
+            return new();
         }
 
         public ExcursionGroupViewModel? GetElement(ExcursionGroupSearchModel model)
diff --git a/TravelAgency/TravelAgencyDatabaseImplement/Implements/ExcursionStorage.cs b/TravelAgency/TravelAgencyDatabaseImplement/Implements/ExcursionStorage.cs
index d219637..f8a8f0b 100644
--- a/TravelAgency/TravelAgencyDatabaseImplement/Implements/ExcursionStorage.cs
+++ b/TravelAgency/TravelAgencyDatabaseImplement/Implements/ExcursionStorage.cs
@@ -23,12 +23,10 @@ namespace TravelAgencyDatabaseImplement.Implements
 
         public List<ExcursionViewModel> GetFilteredList(ExcursionSearchModel model)
         {
-            if (string.IsNullOrEmpty(model.ExcursionName))
-            {
-                return new();
-            }
             using var context = new TravelAgencyDatabase();
-            return context.Excursions
+            if (!string.IsNullOrEmpty(model.ExcursionName))
+            {
+                return context.Excursions
                     .Include(x => x.User)
                     .Include(x => x.Tours)
                     .ThenInclude(x => x.Tour)
@@ -36,6 +34,19 @@ namespace TravelAgencyDatabaseImplement.Implements
                     .ToList()
                     .Select(x => x.GetViewModel)
                     .ToList();
+            }
+            if (model.UserId.HasValue)
+            {
+                return context.Excursions
+                    .Include(x => x.User)
+                    .Include(x => x.Tours)
+                    .ThenInclude(x => x.Tour)
+                    .Where(x => x.UserId.Equals(model.UserId))
+                    .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+            }
+            return new();
         }
 
         public ExcursionViewModel? GetElement(ExcursionSearchModel model)
diff --git a/TravelAgency/TravelAgencyDatabaseImplement/Implements/GuideStorage.cs b/TravelAgency/TravelAgencyDatabaseImplement/Implements/GuideStorage.cs
index 4d37a00..1ab2bc4 100644
--- a/TravelAgency/TravelAgencyDatabaseImplement/Implements/GuideStorage.cs
+++ b/TravelAgency/TravelAgencyDatabaseImplement/Implements/GuideStorage.cs
@@ -18,27 +18,39 @@ namespace TravelAgencyDatabaseImplement.Implements
 
         public List<GuideViewModel> GetFilteredList(GuideSearchModel model)
         {
-            if (string.IsNullOrEmpty(model.Email))
+            if (string.IsNullOrEmpty(model.GuideFIO))
             {
                 return new();
             }
             using var context = new TravelAgencyDatabase();
             return context.Guides
-                    .Where(x => x.Email.Contains(model.Email))
+                    .Where(x => x.GuideFIO.Contains(model.GuideFIO))
                     .Select(x => x.GetViewModel)
                     .ToList();
         }
 
         public GuideViewModel? GetElement(GuideSearchModel model)
         {
-            if (string.IsNullOrEmpty(model.Email) && !model.Id.HasValue)
-            {
-                return null;
-            }
             using var context = new TravelAgencyDatabase();
-            return context.Guides.FirstOrDefault(x =>
-            (!string.IsNullOrEmpty(model.Email) && x.Email == model.Email)
-            || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+            if (model.Id.HasValue)
+            {
+                return context.Guides
+                    .FirstOrDefault(x => x.Id.Equals(model.Id))
+                    ?.GetViewModel;
+            }
+            if (!string.IsNullOrEmpty(model.Email))
+            {
+                return context.Guides
+                    .FirstOrDefault(x => x.Email.Equals(model.Email))
+                    ?.GetViewModel;
+            }
+            if (!string.IsNullOrEmpty(model.PhoneNumber))
+            {
+                return context.Guides
+                    .FirstOrDefault(x => x.PhoneNumber.Equals(model.PhoneNumber))
+                    ?.GetViewModel;
+            }
+            return null;
         }
 
         public GuideViewModel? Insert(GuideBindingModel model)
diff --git a/TravelAgency/TravelAgencyDatabaseImplement/Implements/PlaceStorage.cs b/TravelAgency/TravelAgencyDatabaseImplement/Implements/PlaceStorage.cs
index 62d43e3..b5d3d34 100644
--- a/TravelAgency/TravelAgencyDatabaseImplement/Implements/PlaceStorage.cs
+++ b/TravelAgency/TravelAgencyDatabaseImplement/Implements/PlaceStorage.cs
@@ -20,29 +20,48 @@ namespace TravelAgencyDatabaseImplement.Implements
 
         public List<PlaceViewModel> GetFilteredList(PlaceSearchModel model)
         {
-            if (string.IsNullOrEmpty(model.PlaceName))
-            {
-                return new();
-            }
             using var context = new TravelAgencyDatabase();
-            return context.Places
+            if (!string.IsNullOrEmpty(model.PlaceName))
+            {
+                return context.Places
                     .Include(x => x.Excursion)
                     .Where(x => x.PlaceName.Contains(model.PlaceName))
                     .Select(x => x.GetViewModel)
                     .ToList();
+            }
+            if (model.ExcursionId.HasValue)
+            {
+                return context.Places
+                    .Include(x => x.Excursion)
+                    .Where(x => x.ExcursionId.Equals(model.ExcursionId))
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+            }
+            return new();
         }
 
         public PlaceViewModel? GetElement(PlaceSearchModel model)
         {
-            if (string.IsNullOrEmpty(model.PlaceName) && !model.Id.HasValue)
-            {
-                return null;
-            }
             using var context = new TravelAgencyDatabase();
-            return context.Places.Include(x => x.Excursion)
-                    .FirstOrDefault(x => (!string.IsNullOrEmpty(model.PlaceName) && x.PlaceName == model.PlaceName) ||
-                                        (model.Id.HasValue && x.Id == model.Id))
+            if (model.Id.HasValue)
+            {
+                return context.Places
+                    .FirstOrDefault(x => x.Id.Equals(model.Id))
                     ?.GetViewModel;
+            }
+            if (!string.IsNullOrEmpty(model.PlaceName))
+            {
+                return context.Places
+                    .FirstOrDefault(x => x.PlaceName.Equals(model.PlaceName))
+                    ?.GetViewModel;
+            }
+            if (!string.IsNullOrEmpty(model.PlaceAddress))
+            {
+                return context.Places
+                    .FirstOrDefault(x => x.PlaceAddress.Equals(model.PlaceAddress))
+                    ?.GetViewModel;
+            }
+            return null;
         }
 
         public PlaceViewModel? Insert(PlaceBindingModel model)
diff --git a/TravelAgency/TravelAgencyDatabaseImplement/Implements/TourStorage.cs b/TravelAgency/TravelAgencyDatabaseImplement/Implements/TourStorage.cs
index e690676..7b9a99d 100644
--- a/TravelAgency/TravelAgencyDatabaseImplement/Implements/TourStorage.cs
+++ b/TravelAgency/TravelAgencyDatabaseImplement/Implements/TourStorage.cs
@@ -20,16 +20,24 @@ namespace TravelAgencyDatabaseImplement.Implements
 
         public List<TourViewModel> GetFilteredList(TourSearchModel model)
         {
-            if (string.IsNullOrEmpty(model.TourName))
-            {
-                return new();
-            }
             using var context = new TravelAgencyDatabase();
-            return context.Tours
+            if (!string.IsNullOrEmpty(model.TourName))
+            {
+                return context.Tours
                     .Include(x => x.User)
                     .Where(x => x.TourName.Contains(model.TourName))
                     .Select(x => x.GetViewModel)
                     .ToList();
+            }
+            if (model.UserId.HasValue)
+            {
+                return context.Tours
+                    .Include(x => x.User)
+                    .Where(x => x.UserId.Equals(model.UserId))
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+            }
+            return new();
         }
 
         public TourViewModel? GetElement(TourSearchModel model)
diff --git a/TravelAgency/TravelAgencyDatabaseImplement/Implements/TripStorage.cs b/TravelAgency/TravelAgencyDatabaseImplement/Implements/TripStorage.cs
index 7b55280..9a354a6 100644
--- a/TravelAgency/TravelAgencyDatabaseImplement/Implements/TripStorage.cs
+++ b/TravelAgency/TravelAgencyDatabaseImplement/Implements/TripStorage.cs
@@ -23,12 +23,10 @@ namespace TravelAgencyDatabaseImplement.Implements
 
         public List<TripViewModel> GetFilteredList(TripSearchModel model)
         {
-            if (string.IsNullOrEmpty(model.TripName))
-            {
-                return new();
-            }
             using var context = new TravelAgencyDatabase();
-            return context.Trips
+            if (!string.IsNullOrEmpty(model.TripName))
+            {
+                return context.Trips
                     .Include(x => x.Guide)
                     .Include(x => x.Places)
                     .ThenInclude(x => x.Place)
@@ -36,6 +34,19 @@ namespace TravelAgencyDatabaseImplement.Implements
                     .ToList()
                     .Select(x => x.GetViewModel)
                     .ToList();
+            }
+            if (model.GuideId.HasValue)
+            {
+                return context.Trips
+                    .Include(x => x.Guide)
+                    .Include(x => x.Places)
+                    .ThenInclude(x => x.Place)
+                    .Where(x => x.GuideId.Equals(model.GuideId))
+                    .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+            }
+            return new();
         }
 
         public TripViewModel? GetElement(TripSearchModel model)
diff --git a/TravelAgency/TravelAgencyDatabaseImplement/Implements/UserStorage.cs b/TravelAgency/TravelAgencyDatabaseImplement/Implements/UserStorage.cs
index bbdff45..3129fc9 100644
--- a/TravelAgency/TravelAgencyDatabaseImplement/Implements/UserStorage.cs
+++ b/TravelAgency/TravelAgencyDatabaseImplement/Implements/UserStorage.cs
@@ -18,27 +18,45 @@ namespace TravelAgencyDatabaseImplement.Implements
 
         public List<UserViewModel> GetFilteredList(UserSearchModel model)
         {
-            if (string.IsNullOrEmpty(model.Email))
+            if (string.IsNullOrEmpty(model.UserFIO))
             {
                 return new();
             }
             using var context = new TravelAgencyDatabase();
             return context.Users
-                    .Where(x => x.Email.Contains(model.Email))
+                    .Where(x => x.UserFIO.Contains(model.UserFIO))
                     .Select(x => x.GetViewModel)
                     .ToList();
         }
 
         public UserViewModel? GetElement(UserSearchModel model)
         {
-            if (string.IsNullOrEmpty(model.Email) && string.IsNullOrEmpty(model.Password) && !model.Id.HasValue)
-            {
-                return null;
-            }
             using var context = new TravelAgencyDatabase();
-            return context.Users.FirstOrDefault(x =>
-            (!string.IsNullOrEmpty(model.Email) && x.Email == model.Email && !string.IsNullOrEmpty(model.Password) && x.Password == model.Password)
-            || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+            if (model.Id.HasValue)
+            {
+                return context.Users
+                    .FirstOrDefault(x => x.Id.Equals(model.Id))
+                    ?.GetViewModel;
+            }
+            if (!string.IsNullOrEmpty(model.Email) && !string.IsNullOrEmpty(model.Password))
+            {
+                return context.Users
+                    .FirstOrDefault(x => x.Email.Equals(model.Email) && x.Password.Equals(model.Password))
+                    ?.GetViewModel;
+            }
+            if (!string.IsNullOrEmpty(model.Email))
+            {
+                return context.Users
+                    .FirstOrDefault(x => x.Email.Equals(model.Email))
+                    ?.GetViewModel;
+            }
+            if (!string.IsNullOrEmpty(model.PhoneNumber))
+            {
+                return context.Users
+                    .FirstOrDefault(x => x.PhoneNumber.Equals(model.PhoneNumber))
+                    ?.GetViewModel;
+            }
+            return null;
         }
 
         public UserViewModel? Insert(UserBindingModel model)