A highly illustrated tour of the human body, with simple, fun analogies to explain how it all works. Follow the owl professor as he takes two children on a tour of a body. But not just any human body - a gigantic factory building built to explain how real bodies work, from cell 'building blocks' to conveyor belts that carry life-giving energy packets and transport defenders to repel germ attacks! This beautifully illustrated book will open children's eyes to the wonder and weirdness of what's going on inside them.