Discover Series Books for Babies & Toddlers If the children at your house love dogs, this book is sure to become a favorite. Featuring 23 full-color photographs of dogs, children of all ages will enjoy the opportunity to look at different dog breeds. Each image is labeled with the dog breed and is an excellent way to introduce babies and toddlers to dogs. Used as a jumpstart for interaction, Discover Series Picture Books are a great way to introduce dogs, their sounds and colors to kids.