An amazing amount of information is packed into these 38 pages. An unusual format breaks the body into four sections - head, chest, abdomen and legs - and within each section there are excellent graphics, computer images, pictures and text. Each section begins with a transparent overlay, the better to see the interior of that part of the body, and then goes on to picture and explain in detail what goes on in each organ. The detail is impressive, though the reproductive organs do get fairly short shrift.