Genetic determinism has been with us since the bible. Recent advances in genome and proteome studies debunk both radical claims: "people are born bad" (bad seeds hypothesis) and "people are corrupted by bad parents and society" (the tabula rasa approach). It seems that genes and environment interact, recursively influencing each other. So are crime and moral dissolution hereditary mental disorders - or learned behavior patterns? The author votes for the former in this impressive but accessible introductory text, replete with dozens of case studies and recent scientific data. Still, social and domestic ills such as abuse and poverty, admits Black, a psychiatrist, play a role, at least in unlocking the criminal "potential". One should applaud the author's honesty in admitting his own profession's helplessness in the face of these depraved and largely untreatable personality disorders. Sam Vaknin, author of "Malignant Self Love - Narcissism Revisited".