Tree bookcase!

Astregal

Bookcase from Boxes

Tree bookshelf

Round Bookcase Hovering Above Davis Writing Studio By Travis Price Architects

bookshelves behind stairs

this is MY heaven :)

Shelving - the perfect thing for drunk people to look at!!

cardboard round bookcase

Funky home-decor

$3 DIY Pallet Bookshelf...

bookcase doorway

bookshelf bookshelf bookshelf

That doesn't look like it's made from cardboard! We've had some great posts on cardboard furniture you can buy that doesn't LOOK like cardboard, but most DIY options resemble the brown recyclable stuff.

bookcase

Coolest bookshelf @Marlo Tiffany Tiffany Tiffany Tiffany Tiffany Tiffany Tiffany have you seem this?!

bookcases...

Trees need to be everywhere in my home...

love these bookshelves

25 Great DIY Shelving Ideas...idea for the office

Bookshelf