63 books • 20 series
Book #2: Wish for a Fish: All About Sea Creatures
Book #3: Oh Say Can You Say Di-no-saur? All About Dinosaurs
Book #5: Oh, the Things You Can Do That are Good for You!
Book #9: If I Ran the Rain Forest
Book #12: A Whale of a Tale! All About Porpoises, Dolphins, and Whales