This edited volume is designed to cover both the foundations of criminal behavior as well as ‘cutting edge’ research on the etiology, nature, assessment, and treatment of individuals who commit violent crime. Interdisciplinary in nature, this text draws from research in clinical psychology, social psychology, criminal justice, medicine, and biology. Equal consideration is given to environmental and biological research into criminal behavior. Furthermore, this text takes a critical approach to the research with frank discussions of what is known and what is yet to be determined, and presents this material in a straightforward manner that will challenge students to think critically.