I have to say that yes, this takes A LOT of time to label and level every book but my library was super organized for years and I rarely had missing books. I'm including labels for all genres (some are from Beth Newingham's blog on scholastic.com), pictures of my library and book nook areas and my checkout method. I put library cards (index cards) into each book and students would take the card out of the book and put it into their pocket with their name. This worked really well. Enjoy!