I've always loved all the books in Dan's room on "Gossip Girl", especially that built-in shelf on the brick wall...would love a built in shelf over my bed like that.
I also like how he (or really, the set designers, since Dan is sadly fictional, after all) has books piled around on almost every surface. I love seeing books just stacked up everywhere, I like them neatly organized, but at times I think they look just as interesting in messy, haphazard stacks and rows, like here:
Picture from homeofthenutty.com