Discover how the amazing and impressive human body works with this innovative fact-filled book that includes a layered 3-D model built right into the pages! Informative text and illustrations accompany the unique 3-D model that can be deconstructed and rebuilt layer by layer, system by system, just by turning the page. This makes it easy for children to understand how all the major systems of the body work together to enable us to breathe, move, and interact with the world around us. Learning has never been so much fun!