The Stuff Kids is a series of children's books designed to teach and inspire young girls and boys about what the stuff that surrounds us is made of. The Stuff Kids live in a secret world that surrounds us. Each one is made of a different material. That’s what makes them who they are. If you see one...please say: Hello! They always have good stories to tell! Woollard is made of wool. Page is made of paper. Stretch is made of rubber. Bob is made of cork.