Is your shelf a little overstuffed? Just can't fit another tome in in the spaces? Are there even any spaces left?
It's okay! Instead of leaving piles of books around, you can put them in the bag instead. It has a picture of a bookshelf on it, so it's kind of the same thing!
Huh? What's that?
Yeah, I guess you could use it to carry other stuff too if you wanted.