In the past 2 decades, important insights have been gained regarding violence and trauma. Complications occur in how violence and trauma, their causes, and their effects on victims should be defined. Violence and abuse to women- physical, sexual, and emotional - are not rare events and are most often perpetrated by partners or acquaintances rather than strangers and occur in nonmarital as well as marital relationships, including same-sex relationships. A promising methodological innovation in the study of violence and trauma is the use of longitudinal designs. Innovations in treatments for victims such as evidence-based interventions have been slow to emerge; they include eye movement desensitization and reprocessing (EMDR) and the Seeking Safety group intervention for drug-abusing women with trauma histories. Future research should address increased understanding of variation in individual responses to violence and trauma, matching of treatment to different types of male offenders, better understanding of how culture affects violence perpetration and victimization, and evaluation of domestic violence interventions.