This book investigates the factors that contribute to the efficiency of psychological trauma treatment. Experts in the field explore the mechanisms of acute and interpersonal trauma, including partner violence, childhood abuse, elder abuse, natural disasters and war. New research investigates the characteristics of professional and non-professional helpers, victims and perpetrators, and the relationships between them, while crucial analyses shed light on the specific factors that influence the effectiveness of different interventions and psychotherapies. The question, 'can specific forms of psychological help be tailored to heal different kinds of trauma?' offers a centre-point for the volume. As such, it represents an important contribution to understanding the factors that contribute to the healing of the mental and physical manifestations of psychological trauma.