The book "Group Training in Social Skills for Children and Adolescents GSK-KJ" provides a comprehensive theoretical foundation as well as practical guidance for promoting social skills in young people. It is aimed at professionals working in social work, education, or psychology, and offers valuable insights into the development and strengthening of social competencies. The authors, Karin Lübben and Barbara Jürgens, combine scientific findings with practical methods to enable effective implementation in groups. The book also includes online materials that support and expand the application of the concepts. It is an essential tool for anyone working with children and adolescents who wish to foster their social interactions.