Soft skills, often referred to as "soft abilities," are becoming increasingly important in the professional world, as mastering them often makes the crucial difference in otherwise identical and interchangeable performances. Companies are increasingly recognizing that technical knowledge alone does not enable employees to carry out their entrusted tasks with high quality, great efficiency, and value-creating performance. In particular, leadership positions place high demands on the relevant employees regarding personal and social competencies. This book provides a compact yet well-founded introduction to the six most important personality and social competencies: self-management and time management, communication, conflict management, creativity, motivation, team development, and group dynamics. The theoretical foundations of each topic are explained.