private void GetAuthorBooks()
 {
     try
     {
         this.GetAuthors();
         Console.Write("Введите номер автора: ");
         int id_Author = Convert.ToInt32(Console.ReadLine());
         dB_Connection.GetBooksAuthors(id_Author);
     }
     catch (Exception ex)
     {
         Console.WriteLine(ex.Message);
     }
 }