This is the coolest idea I see these days.
I have been having problem organizing my books. I never know how to deal with them in a way both fashion & convenient. This is absolutely a guide for me. Having such a rack on the wall will definitely bring personality to a room, as showcasing what you are reading is presenting your personality.
My only concern is dust. I live in a community crowded with trees but dust is still everywhere, I really don't know why.... So I think I may need to cover it maybe with a transparent curtain....Yes I know this idea is not cool....
Big thank to Agusta and Gustav for your great creation!