How it Works: Human BodyBy: Amelia Hepworth Illustrator: David Semple Series: How It Works A first introduction to the human body for curious toddlers. With layered die cuts throughout. The human body is an amazing machine! Take a look inside and learn all about how it works with this interactive layered die cut board book. Simple callouts, such as "hair," "ear," "arm," and "bones," invite even the youngest reader to explore the workings of the human body. Topics covered