Broadly my research addresses the issues of group behaviour and the individual-social relationship. More specifically, my recent research can be grouped into three areas. The first is an attempt to develop a model of crowd action that accounts for both social determination and social change. The second concerns the construction of social categories through language and action. The third concerns political rhetoric and mass mobilisation - especially around the issue of national identity. Currently, I am starting work on a Leverhulme funded project (jointly with Nick Hopkins of Lancaster University) looking at the impact of devolution on Scottish identity and social action in Scotland. 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”. Tegan Cruwys is an Associate Professor and NHMRC Emerging Leadership Fellow at the Australian National University and a former Australian Research Council DECRA Fellow. Her research investigates how social relationships shape mental and physical health — work that is at the intersection of social, clinical and health psychology. She is passionate about the capacity our psychological theorising and methods to help us tackle big problems like discrimination, loneliness, and health inequality. She has authored over 140 papers on these topics, as well as The New Psychology of Health: Unlocking the Social Cure (with Catherine Haslam, Jolanda Jetten, Genevieve Dingle, and Alex Haslam, 2018) — winner of the British Psychology Society’s Textbook of the Year award in 2020.