This book is an essential, accessible new guide on psychopathy and its development. Through the lens of the biopsychosocial model, the author explores a wide range of factors contributing to the development of psychopathy, from the genetic to the environmental, supported by the latest research into the disorder. He examines psychopathy from all angles, analyzing social, psychological and biological factors, in addition to the history and assessment of psychopathy, and links to violent crime. Theory and research are supported throughout with fascinating case studies. These case studies provide accessible and relevant examples for readers who are new to the field, and to those more familiar with psychopathy and its implications. This volume is a brilliant resource for psychology students, researchers and practitioners in the criminal justice system alike, with grounding in forensic psychology, clinical psychology and criminology.