Sexual abuse occurs both in family contexts and in institutions. It always involves the abuse of power over children and adolescents who depend on protection and care in stable relationships. Following the revelation of abuse scandals and subsequent waves of exposure and processing, the topic is discussed in public and professional circles. The more knowledge there is about the dynamics between victims and perpetrators, as well as about guidelines for preventing sexual abuse in institutions and the corresponding legal foundations, the more likely it is that there will be a professional response and reflection. This book provides the necessary foundational knowledge about psychodynamics and illustrates effective measures for intervention and prevention through case studies from various institutions.