else if (command.Substring(0, 3).Equals("GET"))
            {
                String[] commands = command.Split('_');
                String autor = commands[1];
                String nazev = commands[2];
 
                Kniha book = (from kniha in books.Kniha
                              where kniha.Autor.Equals(autor) && kniha.Nazev.Equals(nazev)
                              select kniha).FirstOrDefault();
                //book.Pocet--;
                //books.SaveChanges();
                imgBytes = book.Obrazek;//Konvertory.BytesToString(book.Obrazek);
                String msg = book.Zanr  + "_" + book.Autor + "_" + book.Nazev + "_" +
                             book.Pocet + "_" + book.Shrnuti + "_" + book.Hodnoceni + "_" +
                             book.Podrobnosti +"_"+ imgBytes.Length;
                Answer(msg);
            }
            else if (command.Equals("IMG"))
            {
                NetworkStream networkStream = clientSocket.GetStream();
                networkStream.Write(imgBytes, 0, imgBytes.Length);
                networkStream.Flush();
            }
            else
            {
                Answer("You just sent me " + command);
            }