This guidebook is an effort to improve services for Latino/Hispanic children and families who have experienced trauma. Experts in the fields of child trauma research, clinical practice, policy, and cultural diversity participated in multiple focus groups. These focus groups were designed to identify key priority areas that should be addressed when adapting evidence-based practice, and mental health practice in general, to fit the needs of Latino/Hispanic children and families affected by trauma. These Adaptation Guidelines have been designed for use by anyone who is interested in better serving Latino/Hispanic children and families who have been impacted by trauma. Some of the content and recommendations are more relevant for advocates and therapists, while other content and recommendations are designed for program administrators and policy makers.