The fundamentals, cultural considerations, and actions to be taken to address trauma through peer support are explained. “This guide was created for a very specific purpose: to help make trauma-informed peer support available to women who are trauma survivors and who receive or have received mental health and/or substance abuse services. It is designed as a resource for peer supporters in these or other settings who want to learn how to integrate trauma-informed principles into their relationships with the women they support or into the peer support groups they are members of. The goal is to provide peer supporters-both male and female-with the understanding, tools, and resources needed to engage in culturally responsive, trauma-informed peer support relationships with women trauma survivors” (p. 1). Thirteen chapters are in this publication: introduction to trauma and trauma-informed practices; whether one is a trauma survivor or not; peer support fundamentals; gender policies and the criminalization of women; culture and trauma; religion, spirituality, and trauma; trauma-informed peer support across the lifespan; trauma and peer support relationships; self-awareness and self-care; organizational context-working in systems; trauma-informed storytelling and other healing practices; self-inflicted violence and peer support; and reclaiming power through social action.