Concept books come with expectations, and everybody knows them. Mastering basic shapes is a key element for preschool readiness, and everybody knows that. Kraegel breaks, most delightfully, from the program, throwing his audience off balance with one change-up and then another, until this rudimentary lesson is so swamped with giggles that tykes might forget they’re learning.
—Bulletin of the Center for Children’s Books
—Wall Street Journal