After describing the territory of trauma and reviewing the state of the art of its psychotherapeutic approach, this book offers various action strategies and a large number of intervention techniques designed to empower clients and help them take back the reins of their lives. Traumatic experiences often leave painful and disabling psychological scars that affect the people who experience them and those who live with them. These post-traumatic sequelae pose challenging challenges for psychotherapists. Symptoms such as flashbacks, nightmares or intrusive thoughts, emotions such as shame or guilt, and processes such as avoidance or interpersonal mistrust can be difficult to manage, even for experienced professionals. Brief Systemic Therapy puts at the service of intervention with survivors of traumatic experiences a wide range of intervention techniques derived from Solution-Focused Brief Therapy, Strategic Brief Therapy, narrative approaches and Positive Psychology. The integration of these techniques, adapted to the circumstances of each case and the preferences of each consultant, allows to overcome trauma, reactivate resilience and promote post-traumatic growth.