On Apple's iBook page the size of the 12.1" iBook is different depending which page you go to. Link #1 will take to you the main page of the iBooks. About half way down the page there are two images describing the width and depth of the iBooks. For the 12.1" the width is 11.2" and the depth is 9.1" Link #1 Link #2 is the iBooks tech specs page. If you scroll all the way down to the bottom (on the right) the specs are shown like this: Size and weight (12.1-inch model) * Height: 1.35 inches (3.42 cm) * Width: 11.2 inches (28.5 cm) * Depth: 9.06 inches (23.0 cm) * Weight: 4.9 pounds (2.2 kg) (1) Link #2 This is a little strange, either the iBooks have grown over night, or Apple has yet to change it since the last iBooks.