This report from the Volunteers of America (VOA) summarizes a literature review of the most promising current models of trauma-informed systems. It looks at the definitions of trauma-informed and trauma-specific models. The report also includes a resource list for thought leaders and trainers in the field of trauma-informed services, and concludes with a discussion of findings and proposed next steps toward building a more trauma-informed system.  This VOA study focuses on organizations that interact with children, youth, and families. (author abstract modified)