private void pictureBox2_Click(object sender, EventArgs e)
        {
            UserWelcome uw = new UserWelcome();

            uw.Show();
            this.Hide();
        }
        private void Back_Click(object sender, EventArgs e)
        {
            UserWelcome uw = new UserWelcome();

            uw.Show();
            this.Hide();
            this.Close();
        }
        private void books_Click(object sender, EventArgs e)
        {
            UserWelcome UW = new UserWelcome();

            ViewAllBooks vb = new ViewAllBooks(UW);

            vb.Show();
            this.Hide();
            this.Close();
        }
 public ViewAllBooks(UserWelcome uw)
 {
     InitializeComponent();
     UW = uw;
 }