We've used a similar corner shelving unit to create space in a small 7 by 9 ft room. It's a great, easy shelving solution for small spaces (although installing it was a bit tricky as the walls weren't plumb.
The most innovative book arrangement: Cool DIY pipe book shelf.for the industrial looking living room.all parts can be bought at home depot, and they will even thread the pipe for you there to the length that you need it! Maybe for bedroom idea.
This bookshelf wall is the dream of every bookworm. How else will you store all your books in your dream home or interior? I always love when bookshelves go over a doorpost and all the way to the ceiling.