This extensively referenced collection of comprehensive reviews by multiple contributors was helpful in thinking about my patient, with some exceptions. The book is to be commended for its broad coverage, ranging from theory to practice, from laboratory bench to barstool to swing set, from molecule to society and back. The contributors reveal that "aggression" is not unitary. Rat paradigms seem to correlate with abnormalities of specific neurotransmitters, brain regions, pathways, cells, and points in development. Human aggression is much more complex, involving personal history (especially of abuse and neglect) and decision-making processes. Aggression can be seen as a normal phenomenon, as well as from the points of view of pathology, ethology, and evolution. Interpersonal conflict and ethnic riots generally have no single cause and occur in contexts. The media contribute, and "the United States, as the largest manufacturer and exporter…has an obligation to the ‘global village’ to provide more research" into its effects (p. 247).