Children and animals go together like peanut butter and jelly. That is why children like coloring books that feature dogs and puppies. Children think dogs and puppies are cute. Children like to cuddle with furry little animals. Sometimes real life dogs can bark or snarl. That can scare young children. However, pictures in coloring books are non-threatening. Animals in coloring books are cute and friendly. That attracts children, and they enjoy looking at them and coloring them.