Since earliest times we have been fascinated with the marvellous machine that is our body and have made efforts to understand anatomy and map the body and its systems. Today we are in the midst of extraordinary innovation - the US National Library of Medicine's Visible Human Project has produced the first anatomically exact and complete, three-dimensional, computer-generated reconstruction of an actual human body. The amazing imagery revealed in this unique book is derived from the process of digitising the thousands of cross sections of a body and is the result of years of painstaking research combined with innovative computer-modelling techniques. This process comes closest to achieving the ideal of anatomical representation - which is to re-create visually the exact forms of the body and all its parts.