With the rise of eBooks, people are saying paper books will die, but this is not true, and books could be a piece of art also in the digital publishing era.
As expamples, you can see the pictures below, where books (paper books) were used to build true art pieces, true sculptures that use books as some kind of "bricks".
With paper books you can even create rooms and buildings, pretty much like everyone does with the pile of books they still have to read, or even create some scultures for your walls.
You can also cut them, so that pages can become the bricks of your creations.
All things that are impossible to do with digital books, that are just files on a computer or an eBook Reader.