Book excerpt: Preventing Domestic Homicides: Lessons Learned from Tragedies focuses on the diverse nature of domestic homicides and what has been learned about the most effective prevention strategies from emerging research and the work of domestic violence death review committees in Canada, the US, the UK, NZ and AU. Each chapter focuses on different populations-specifically older women, youth dating relationships, indigenous women, immigrant and refugee populations, rural/remote communities, same-sex relationships, homicides with police & military, domestic homicide in the workplace, and children killed in the context of domestic violence. Topics cover current research, risk factors, and include case studies from domestic homicide review committees. Cases are summarized regarding major themes and recommendations, such as public awareness, professional training, risk assessment, intervention and collaboration amongst service systems. Written for academic and domestic violence researchers in sociology, criminology, psychology and psychiatry by global contributors with on-the-ground domestic homicide experience.