Robert The is an artist that transforms ordinary books into funny shapes by cutting them. The shapes are everything from lobsters and scorpions to guns and cakes. They are still books but the content is unreadable, so they function only as art, or more precisely modern art.
Robert The, that is also a mathematician, has made these bizarre creations for many years, and you can see his works in several private collections in modern museums.
Books have been used by many other artists, like Mike Stilkey; he is using the spines of stacked books to create beautiful art.