During the past decades, the scientific discipline of Sports Didactics has developed in a heterogenous manner across national borders and individual university locations in Europe. Its position and situatedness has been characterised by its relation to and differentiation from Sports Pedagogy and other sub-disciplines within sports and educational sciences. The significance of Sports Didactics remains closely connected to the role of the school Subject Physical Education as well as Physical Education Teacher Education at universities and colleges. This collected volume provides an overview of the Subject understandings, theory landscapes, research contexts and practice models across 24 European countries along five lines of investigation: national historical developments of Sports Didactics, main trends and tendencies of theoretical differentiation, application fields of research and theory formation, recent research perspectives and possible future developments.