Even though only a minority of men may commit sexual assault, all men can have an influence on the culture and environment that allows other men to be perpetrators. The author believes that effective sexual assault prevention requires that men look at their own potential for violence as well as take a stand against the violence of other men. This chapter provides an overview of the issues involved in men taking responsibility for sexual assault prevention, suggests a philosophy and pedagogy for rape prevention, provides a developmental model for prevention programs, makes recommendations for advancing the field, and reviews promising interventions and strategies. The chapter's primary focus is the prevention of sexual assault perpetrated by young men against young women who know each other in college or high school settings. (PsycINFO Database Record (c) 2012 APA, all rights reserved)