If you're buying this as a novelty because it's "written by" Jimmy Fallon, then you'll be fine. The images are cute and the books are well structured.
But otherwise, they're nothing special. Especially for the price. But that's really it. Depends on whether or not you concern yourself with the idea of value to price in some of the baby items you purchase. If it's no issue for you, it's just another item for your shelves.