diff --git a/ComputersShop/ComputersShopFileImplement/DataFileSingleton.cs b/ComputersShop/ComputersShopFileImplement/DataFileSingleton.cs
index d942a54..0374f2a 100644
--- a/ComputersShop/ComputersShopFileImplement/DataFileSingleton.cs
+++ b/ComputersShop/ComputersShopFileImplement/DataFileSingleton.cs
@@ -16,12 +16,14 @@ namespace ComputersShopFileImplement
 		private readonly string ComputerFileName = "Computer.xml";
 		private readonly string ClientFileName = "Client.xml";
         private readonly string ImplementerFileName = "Implementer.xml";
+		private readonly string MessageFileName = "Message.xml";
 
         public List<Component> Components { get; private set; }
 		public List<Order> Orders { get; private set; }
 		public List<Computer> Computers { get; private set; }
 		public List<Client> Clients { get; private set; }
         public List<Implementer> Implementers { get; private set; }
+		public List<Message> Messages { get; private set; }
 
         public static DataFileSingleton GetInstance()
 		{
@@ -36,6 +38,7 @@ namespace ComputersShopFileImplement
 		public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
 		public void SaveClients() => SaveData(Clients, OrderFileName, "Clients", x => x.GetXElement);
         public void SaveImplementers() => SaveData(Implementers, ImplementerFileName, "Implementers", x => x.GetXElement);
+		public void SaveMessages() => SaveData(Messages, MessageFileName, "Messages", x => x.GetXElement);
 
         private DataFileSingleton()
 		{
@@ -44,6 +47,7 @@ namespace ComputersShopFileImplement
 			Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
 			Clients = LoadData(ClientFileName, "Client", x => Client.Create(x)!)!;
             Implementers = LoadData(ImplementerFileName, "Implementer", x => Implementer.Create(x)!)!;
+			Messages = LoadData(MessageFileName, "Message", x => Message.Create(x));
         }
         private static List<T>? LoadData<T>(string filename, string xmlNodeName, Func<XElement, T> selectFunction)
 		{
diff --git a/ComputersShop/ComputersShopFileImplement/Implements/MessageInfoStorage.cs b/ComputersShop/ComputersShopFileImplement/Implements/MessageInfoStorage.cs
new file mode 100644
index 0000000..73b9afd
--- /dev/null
+++ b/ComputersShop/ComputersShopFileImplement/Implements/MessageInfoStorage.cs
@@ -0,0 +1,58 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopFileImplement.Implements
+{
+	public class MessageInfoStorage : IMessageInfoStorage
+	{
+		private readonly DataFileSingleton _source;
+		public MessageInfoStorage()
+		{
+			_source = DataFileSingleton.GetInstance();
+		}
+
+		public MessageInfoViewModel? GetElement(MessageInfoSearchModel model)
+		{
+			if (model.MessageId != null)
+			{
+				return _source.Messages.FirstOrDefault(x => x.MessageId == model.MessageId)?.GetViewModel;
+			}
+			return null;
+		}
+
+		public List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model)
+		{
+			return _source.Messages
+				.Where(x => x.ClientId == model.ClientId)
+				.Select(x => x.GetViewModel)
+				.ToList();
+		}
+
+		public List<MessageInfoViewModel> GetFullList()
+		{
+			return _source.Messages
+				.Select(x => x.GetViewModel)
+				.ToList();
+		}
+
+		public MessageInfoViewModel? Insert(MessageInfoBindingModel model)
+		{
+			var newMessage = Message.Create(model);
+			if (newMessage == null)
+			{
+				return null;
+			}
+			_source.Messages.Add(newMessage);
+			_source.SaveMessages();
+			return newMessage.GetViewModel;
+		}
+	}
+}
diff --git a/ComputersShop/ComputersShopFileImplement/Models/Message.cs b/ComputersShop/ComputersShopFileImplement/Models/Message.cs
new file mode 100644
index 0000000..bef34fa
--- /dev/null
+++ b/ComputersShop/ComputersShopFileImplement/Models/Message.cs
@@ -0,0 +1,80 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace ComputersShopFileImplement.Models
+{
+	public class Message : IMessageInfoModel
+	{
+		public string MessageId { get; private set; } = string.Empty;
+
+		public int? ClientId { get; private set; }
+
+		public string SenderName { get; private set; } = string.Empty;
+
+		public DateTime DateDelivery { get; private set; } = DateTime.Now;
+
+		public string Subject { get; private set; } = string.Empty;
+
+		public string Body { get; private set; } = string.Empty;
+
+		public static Message? Create(MessageInfoBindingModel model)
+		{
+			if (model == null)
+			{
+				return null;
+			}
+			return new()
+			{
+				Body = model.Body,
+				Subject = model.Subject,
+				ClientId = model.ClientId,
+				MessageId = model.MessageId,
+				SenderName = model.SenderName,
+				DateDelivery = model.DateDelivery,
+			};
+		}
+
+		public static Message? Create(XElement element)
+		{
+			if (element == null)
+			{
+				return null;
+			}
+			return new()
+			{
+				Body = element.Attribute("Body")!.Value,
+				Subject = element.Attribute("Subject")!.Value,
+				ClientId = Convert.ToInt32(element.Attribute("ClientId")!.Value),
+				MessageId = element.Attribute("MessageId")!.Value,
+				SenderName = element.Attribute("SenderName")!.Value,
+				DateDelivery = Convert.ToDateTime(element.Attribute("DateDelivery")!.Value),
+			};
+		}
+
+		public MessageInfoViewModel GetViewModel => new()
+		{
+			Body = Body,
+			Subject = Subject,
+			ClientId = ClientId,
+			MessageId = MessageId,
+			SenderName = SenderName,
+			DateDelivery = DateDelivery,
+		};
+
+		public XElement GetXElement => new("MessageInfo",
+			new XAttribute("Body", Body),
+			new XAttribute("Subject", Subject),
+			new XAttribute("ClientId", ClientId),
+			new XAttribute("MessageId", MessageId),
+			new XAttribute("SenderName", SenderName),
+			new XAttribute("DateDelivery", DateDelivery)
+			);
+	}
+}
diff --git a/ComputersShop/ComputersShopListImplement/DataListSingleton.cs b/ComputersShop/ComputersShopListImplement/DataListSingleton.cs
index 0083412..3e7d0e1 100644
--- a/ComputersShop/ComputersShopListImplement/DataListSingleton.cs
+++ b/ComputersShop/ComputersShopListImplement/DataListSingleton.cs
@@ -15,6 +15,7 @@ namespace ComputersShopListImplement
 		public List<Computer> Computers { get; set; }
 		public List<Client> Clients { get; set; }
         public List<Implementer> Implementers { get; set; }
+		public List<Message> Messages { get; set; }
         private DataListSingleton()
 		{
 			Components = new List<Component>();
@@ -22,6 +23,7 @@ namespace ComputersShopListImplement
 			Computers = new List<Computer>();
 			Clients = new List<Client>();
             Implementers = new List<Implementer>();
+			Messages = new List<Message>();
         }
 		public static DataListSingleton GetInstance()
 		{
diff --git a/ComputersShop/ComputersShopListImplement/Implements/MessageInfoStorage.cs b/ComputersShop/ComputersShopListImplement/Implements/MessageInfoStorage.cs
new file mode 100644
index 0000000..bfa8252
--- /dev/null
+++ b/ComputersShop/ComputersShopListImplement/Implements/MessageInfoStorage.cs
@@ -0,0 +1,66 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.Implements
+{
+	public class MessageInfoStorage : IMessageInfoStorage
+	{
+		private readonly DataListSingleton _source;
+		public MessageInfoStorage()
+		{
+			_source = DataListSingleton.GetInstance();
+		}
+
+		public MessageInfoViewModel? GetElement(MessageInfoSearchModel model)
+		{
+			foreach (var message in _source.Messages)
+			{
+				if (model.MessageId != null && model.MessageId.Equals(message.MessageId))
+					return message.GetViewModel;
+			}
+			return null;
+		}
+
+		public List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model)
+		{
+			List<MessageInfoViewModel> result = new();
+			foreach (var item in _source.Messages)
+			{
+				if (item.ClientId.HasValue && item.ClientId == model.ClientId)
+				{
+					result.Add(item.GetViewModel);
+				}
+			}
+			return result;
+		}
+
+		public List<MessageInfoViewModel> GetFullList()
+		{
+			List<MessageInfoViewModel> result = new();
+			foreach (var item in _source.Messages)
+			{
+				result.Add(item.GetViewModel);
+			}
+			return result;
+		}
+
+		public MessageInfoViewModel? Insert(MessageInfoBindingModel model)
+		{
+			var newMessage = Message.Create(model);
+			if (newMessage == null)
+			{
+				return null;
+			}
+			_source.Messages.Add(newMessage);
+			return newMessage.GetViewModel;
+		}
+	}
+}
diff --git a/ComputersShop/ComputersShopListImplement/Models/Message.cs b/ComputersShop/ComputersShopListImplement/Models/Message.cs
new file mode 100644
index 0000000..da24fe7
--- /dev/null
+++ b/ComputersShop/ComputersShopListImplement/Models/Message.cs
@@ -0,0 +1,53 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.Models
+{
+	public class Message : IMessageInfoModel
+	{
+		public string MessageId { get; private set; } = string.Empty;
+
+		public int? ClientId { get; private set; }
+
+		public string SenderName { get; private set; } = string.Empty;
+
+		public DateTime DateDelivery { get; private set; } = DateTime.Now;
+
+		public string Subject { get; private set; } = string.Empty;
+
+		public string Body { get; private set; } = string.Empty;
+
+		public static Message? Create(MessageInfoBindingModel model)
+		{
+			if (model == null)
+			{
+				return null;
+			}
+			return new()
+			{
+				Body = model.Body,
+				Subject = model.Subject,
+				ClientId = model.ClientId,
+				MessageId = model.MessageId,
+				SenderName = model.SenderName,
+				DateDelivery = model.DateDelivery,
+			};
+		}
+
+		public MessageInfoViewModel GetViewModel => new()
+		{
+			Body = Body,
+			Subject = Subject,
+			ClientId = ClientId,
+			MessageId = MessageId,
+			SenderName = SenderName,
+			DateDelivery = DateDelivery,
+		};
+	}
+}