Book excerpt: Discover how the amazing human body functions day in and day out to keep us alive. The intricate systems of the human body have fascinated us for centuries, and The Ultimate Interactive Guide to the Human Body gives children a complete overview of this remarkable machine in an easily accessible format. The 48-page book is filled with colorful illustrations, diagrams, and informative text on how all the parts of the body work together to enable us to move, learn, grow, and stay healthy. A large wall poster and 3-D cardstock models of a human skeleton and eyeball enhance the educational journey into discovering the amazing functions of the human body.