img src="books/glider.png" class="glider" alt="glider" onmouseover="this.src='books/glider3.png'" onmouseout="this.src='books/glider.png'">
img src="books/mom.png" class="mom" alt="mom" onmouseover="this.src='books/mom3.png'" onmouseout="this.src='books/mom.png'">
