Build an Island
In Books Tower, you have to drop the books on top of each other to create a big stack. As long as you can stack the books up neatly, your tower will stay balanced. Can you keep adding more books? When your tower becomes a little crooked, it will start swaying from side to side, making it more difficult to stack the books. The higher the tower, the less stable it becomes. How many more books can you stack on top?
