Social skills are an important topic in human resources departments. Alongside professional competencies, they have become a key variable in personnel selection and placement, and they also receive significant attention in the form of management seminars in personnel development. However, the great popularity of the concept is often met with a certain lack of clarity, as many people understand social skills differently. Against the backdrop of psychological theories and research findings, this volume brings structure to the diversity of the topic. The new edition takes into account current developments in this field. First, a distinction of fundamental terms is made, before discussing the emergence of socially competent behavior and the causes of socially incompetent behavior in the professional context.