In recent years, several manuals and guidelines have been developed in the field of trauma. Some of these have addressed gender-based violence (GBV), its consequences, and ways to prevent it and protect against it. This manual focuses on the mental health of survivors of trauma, especially trauma associated with GBV. The aim is to provide a very practical supplement to the existing literature. The manual suggests approaches and techniques that address the psychological needs of GBV survivors, which helpers can use when they assist and provide care to individuals who are exposed to this form of violence. It focuses especially on ways of understanding how trauma affects the lives of survivors. The manual is a resource for helpers working in emergency situations who have little or no access to specialised health services or to health professionals with psychological or psychiatric expertise.