I used to do this as a kid to make desks for my barbies with small pieces of cardboard. It is Super simple, I used faux leather strips, wrapped it around the book and then attached the straps to the wall with upholstery tacks. I really want to do this on a bigger scale, something stronger that can hold more weight; dare I say it, maybe hold books?! You aren’t laughing are you?
For now, I’m really enjoying this little shelf.