Anyone who is leaning toward buying this set because of the included book, 'The Art and Making of The Dark Knight Trilogy', should be wary - Unlike the product image, which shows the hardcover edition of the book (which is available separately) the version included with this box set is not merely slimmed down, but heavily abridged too - It features many of the images from the original but almost all the text has been entirely removed. Given that the book allegedly feature rare insight into the intentions of those involved in making this trilogy, it was disappointing to find we only get the pictures - As a bonus addition, it's still a very nice touch, but the differences could be defined more clearly in the product image and description.
(Also, as mentioned elsewhere, the book also isn't quite the right dimensions for the box and requires a piece of polystyrene in order to sit flush with the disc sleeve)