These are some sculptures from a book I just bought called 'Playing With Books' by Jason Thompson. It's a book entirely dedicated to creating decorative and purposeful art made out of found books and features the work of many artists who use books as a medium.
^^Word Hive by Cara Barer
^^The Woodcutter's Hut, 2008 by Su Blackwell
^^ Webster Two Point Oh, 2006 by Brian Dettmer
Relief sculpture taken to the extreme.
Here's a look at the book:
Also Brian Dettmer's website. Check it.