My son's daycare was studying space 1 week before Dr. Seuss's birthday, and he mentioned reading a Cat in the Hat space book at school. I searched for this book and figured it'd be good for us to have at home also. I love this book! It is fun and educational and really presents space in a way that kids will enjoy. My son can tell me all the planets in order from the sun. I love the rhyming and flow of the content, which makes it fun to learn - this book gets an A from me!