1. The Invisible Bookshelf

Via techeblog.com

Via techeblog.com
2. The Rafters Shelf

3. The Infinity Bookshelf

Via gizmodo.com
4. This Staircase Bookshelf

5. And this one.

6. The Inverted Bookshelf

Via instructables.com
Learn how to make one here!
8. The TARDIS bookshelf

9. The Optical Illusion Bookshelf

10. The Read-Unread Bookshelf

11. The Loft Shelf

12. The Levitating Sofa Shelf

Via digsdigs.com
13. The DIY Wall Bookmark Shelf

Via sleekidentity.com
You can use a bracket, or buy this one.
14. The Extending Bookshelf

Via dezeen.com

Via dezeen.com
15. The Secret Playroom Bookshelf

16. The Modular Scaffolding Bookshelves

Via behance.net

Via behance.net

Via behance.net
17. The Falling Books Bookshelf

18. The Piping Bookshelf

Via openenville.fr

Via openenville.fr
19. The Book Bookshelf
