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.
Love this idea. Wish I had a staircase space for it, but I'd still love to use some of these design ideas for our built-in in the dining room. Bookcase at the office of the Dutch Architects of the Year, 2012
For even more storage, consider hanging shelves up high that run the length of the room. You won't loose any floor real estate at all, and you'll gain a lot of storage space. Design Dozen: 12 Clever Space-Saving Solutions for Small Bedrooms