Discover Series Books for Babies & Toddlers Who wants a pet? Just because you know you'll be the one to take care of your child's pet, doesn't mean you have to stop them from dreaming. Cats, dogs, hamsters and horses--there's a pet for everyone in this book. Used as a jumpstart for interaction, Discover Series Picture Books are a great way to introduce farm animals, their sounds and colors to kids. Use this photo dictionary as a learning tool. Each photo has a clear title beneath it for identification. Language learners, children, and people looking to build their vocabulary can use this simple book to learn new words.