An interactive and comprehensive overview of how the human body works!From the beating heart to the thinking brain, this oversized, interactive book offers older readers a captivating look at the different systems that allow our bodies to function well. With more than 60 flaps, tabs, pop-ups, and rotating wheels, kids aged 8 to 12 can explore how organs work together, how babies are made, and how we grow from infancy to adulthood.Detailed illustrations and expert-reviewed content make this book the perfect introduction to anatomy, biology, and health science. Whether at home or in the classroom, it's a powerful tool for learning and discovery.Key Features: - Supersized spreads with realistic, detailed illustrations- Over 60 interactive features to support deeper understanding- Covers anatomy, physiology, reproduction, and development- Great for science lessons and reference useIdeal for fans of the Ultimate Book(TM) series, including The Ultimate Book of Animals, The Ultimate Book of Planet Earth, and more!