// End of Initialization

        private void FormStore_Load(object sender, EventArgs e)
        {
            List <Book> books = DataMan.GetBooks();
            List <Game> games = DataMan.GetGames();

            listboxBooks.Items.Clear();
            foreach (Book book in books)
            {
                listboxBooks.Items.Add(book);
            }
            // End of Foreach

            listboxGames.Items.Clear();
            foreach (Game game in games)
            {
                listboxGames.Items.Add(game);
            }
            // End of Foreach
        }