The Book Fair From the Black Lagoon: 08/20/17
The Book Fair From the Black Lagoon by Mike Thaler is the seventeenth picture book in the series and the only one I've read, or am likely at this time to read. So if you're looking for a comprehensive review of the series, this is not the blog for you! If you're curious, there are twenty books in the series, published originally from 1998-2007.
One thing pictures books are used for is teaching kids about things. The idea is that if you make it an entertaining story you'll also manage to slip some entertainment in. Of course, if this never worked, authors and publishers would stop making these types of books.
Back when I was a kid (although in all fairness, I was still a kid when this series started, though too old to be in the demographic), the series that took care of this task was Amelia Bedelia.
So here the setting is a school. The main character is a kid, so it makes a little more sense that he's clueless about things. Anyway, this time he's worried about an upcoming book fair at his school. He's heard all the jargon and is imagining it in terms of monsters.
Of course when he and his equally worried friends discover the truth behind the book fair they love it. It is after all, well meaning propaganda for school, libraries, and literacy.