Your brain on books, your mind in motion.
Book wheel (below) gives new meaning to being surrounded by books.
Found my way to it via Out of Print, Book Covers as T Shirts for a good cause.
Out of Print actually quoted FFFFOUND! as the original source.
Wondering if the fellow in the center of the wheel is ready to move it around the room, flexing his brain and muscles at once?
Might be hard to stop though!