Great book, worth checking it out and reading with your littles. Story and illustrations are pretty good.
(As a bonus, I enjoyed talking about the illustrations with my child and about some of the things that make them amazing, such as: boys can love unicorns too, girls can love dragons too, and biracial families are beautiful too. This book lost a star and a half because my girl asked, "How do you know that it's a boy?" and I said, "You know, you are absolutely right! Girls have short hair too," but then I noticed what I had subliminally already noticed: the boys in this story have no eyelashes. Boys have eyelashes and are beautiful too.)