Sent to me in an email regarding staircases but what a wonderful way to store books and use space. Same staircase looking down the stairs can be found below.
Optical illusion springs to mind.
If you love looking a pictures of libraries or books as a whole, may I recommend that you pop over and see Claire at The Captive Reader who runs a weekly post called Library Lust. They take your breath away.
The Book Jotter 