The photos in these books are bright, colorful, and feature familiar things. The rhyming text points out the lines and shapes in the pictures in a humorous way. This would be an easy introduction to shapes for a math lesson, or for an early elementary art class. I would pair them up so I could compare and contrast the straight lines and squares in one book with the circles, spheres, and cylinders in the other.
I read an e-book provided by the publisher through NetGalley.
The publishers has provided a biography for the book's authors.