This is one of the funniest and most clever apps I've seen in a while. It's called Shelflook (available at your App Store for 99 cents). And its whole purpose is to save you from tilting your head when you look at shelves of books at a bookstore or library.
I think I might need this. Not because I'm tired of tilting my neck, but because it's just so funny. You scoff? Just wait until you're eighty with a sore neck and I'll be fine. :-)
