The much heralded "completion" of the human genome project in the year 2000 raises urgent questions: Do we now have a map of who we are? How will we control the uses of the potentially healing but also likely destructive and highly marketable information genetics brings us? Using her own life as well as her research, Barbara Katz Rothman presents an impassioned defense for the theory that humans are not "ready made from the factory", as one recent popular book on genetics put it, but social beings who grow, mature, and learn who they are.