<P>As the most comprehensive edited volume to be published on perpetrators and perpetration of mass violence, the volume sets a new agenda for perpetrator research by bringing together contributions from such diverse disciplines as political science, sociology, social psychology, history, anthropology and gender studies, allowing for a truly interdisciplinary discussion of the phenomenon of perpetration. The cross-case nature of the volume allows the reader to see patterns across case studies, bringing findings from <I>inter alia </I>the Holocaust, the genocides in Rwanda and the former Yugoslavia, and the civil wars in Cambodia and C¿te d¿Ivoire into conversation with each other.</P><br/><br/><P>The chapters of this volume are united by a common research interest in understanding what constitutes perpetrators as actors, what motivates them, and how dynamics behind perpetration unfold. Their attention to the interactions between disciplines and cases allows for the insights to be trans