S Alexander Haslam (Alex Haslam) is Professor of Psychology and Australian Laureate Fellow at the University of Queensland. Together with colleagues, he has written and edited 15 books and over 300 research articles and chapters. His most recent books are The New Psychology of Leadership: Identity, Influence and Power (with Steve Reicher and Michael Platow, 2nd ed. 2020) and Social Psychology: Revisiting the Classic Studies (edited with Joanne Smith, 2nd ed. 2017). He is former Chief Editor of the European Journal of Social Psychology and former President of the Psychology Section of the British Science Association. He is a recipient of the European Association of Social Psychology’s Kurt Lewin Medal for research excellence, and the International Society of Political Psychology’s Nevitt Sanford Award for contributions to political psychology. He has also received awards for distinguished contributions to psychological science from both the British Psychology Society and the Australian Psychology Society. In 2022 he was appointed a Member of the Order of Australia “for significant service to higher education, particularly psychology, through research and mentoring”.Katrien Fransenis an Assistant Professor of Performance Psychology at the Department of Movement Sciences at KU Leuven. Her research focuses on how shared leadership can benefit sport team effectiveness and athlete well-being, with a particular emphasis on the role of social identity processes.Filip Boen is Professor of Sport and Exercise Psychology and Head of Department at KU Leuven. His research focuses on the psychology of sports fans and on the ways in which this is shaped by, and shapes, team-based social identities.

Coming up with new ways of thinking about the psychology of sport and exercise is a challenge that we should all embrace and be excited about. Social identity research provides an opportunity for us to do just this. This volume provides fascinating insights across a number of different areas which resonate strongly with my own professional journey within high-performance sport. Its currency lies in its ability to articulate a current and authentic approach which has been overlooked in the literature. This will be a game changer.

• Section 1: IntroductionChapter 1: Towards a new psychology of sport and exercise - Filip Boen, Katrien Fransen & S. Alexander HaslamChapter 2: The social identity approach to sport and exercise psychology - S. Alexander Haslam, Katrien Fransen, Filip Boen & Stephen ReicherSection 2: PerformanceChapter 3: Leadership - Niklas K. Steffens, Katrien Fransen & S. Alexander HaslamChapter 4: Communication - Kim Peters Chapter 5: Teamwork and group performance - Matthew J. Slater, Will Thomas & Andrew L. Evans Chapter 6: Motivation - Katharine H. Greenaway, Sindhuja Sankaran, Svenja A. Wolf & Jardine MitchellChapter 7: Cognition and performance - Jessica Salvatore, Sindhuja Sankaran & DaZané Cole Chapter 8: Attribution - Pete Coffee, Patti Parker, Ross Murray & Simon Kawycz Chapter 9: Emotion and emotion regulation - Svenja A. Wolf, Amit Goldenberg & Mickaël CampoSection 3: ParticipationChapter 10: Physical activity - Mark Stevens, Tegan Cruwys, Tim Rees, S. Alexander Haslam, Filip Boen & Katrien Fransen Chapter 11: Group-based physical activity participation - Mark R. Beauchamp & Joseph J. O’Rourke Chapter 12: Youth development - Mark W. Bruner, Luc J. Martin, M. Blair Evans & Alex J. Benson Chapter 13: Team identity development - Jamie B. Barker, S. Alexander Haslam, Katrien Fransen, Matthew J. Slater, Craig White & Niels Mertens Section 4: Physical and Psychological HealthChapter 14: Social support - Christopher Hartley, S. Alexander Haslam, Tim Rees & Pete Coffee Chapter 15: Mental health and resilience - Tegan Cruwys, Mark Stevens, Catherine Haslam, S. Alexander Haslam & Lisa OliveChapter 16: Career transitions - Lisa M. O’Halloran & Catherine HaslamSection 5: PartisanshipChapter 17: Fan behaviour and loyalty - Filip Boen, Daniel L. Wann, Iouri Bernache-Assollant, S. Alexander Haslam & Katrien Fransen Chapter 18: Crowd behaviour and hooliganism - Clifford Stott Section 6: PoliticsChapter 19: Comparing the social identity approach with self-determination theory - Michael J. Platow & Diana M. GraceChapter 20: The political psychology of sport - Stephen D. Reicher, Meredith Schertzinger & Fergus Neville