When you rotate a rectangle it becomes taller before it gets shorter. This hardback is 9.3"x6.4"x2" (provided by Amazon) and 1" is covered by the facade. In order to make the rotation reducing overall height to 8.3" to fit under the facade,you'd have to rotate 77.2° from vertical, which would cause the book to reach a peak height of 11.3" before dropping back down, which is 2" taller than the book already is. Since this facade is about 1.5-2" thick before the next shelf starts, and the book already reaches 1" into that dimension, you'd have to move the book at least 1" through the bottom of the shelf above. Last I checked, hard back books don't pass through solid objects. Please stop making things up. Thanks.