Lynne Segal is Professor of Psychology and Gender Studies, Department of Psychosocial Studies, Birkbeck, University of London. Her books include Beyond the Fragments: Feminism & the Making of Socialism (with Sheila Rowbotham and Hilary Wainwright); Is the Future Female? Troubled Thoughts on Contemporary Feminism; Slow Motion: Changing Masculinities, Changing Men;Straight Sex: The Politics of Pleasure;Why Feminism? Gender, Psychology and Politics;Making Trouble: Life andPolitics; Out of Time: The Pleasures and Perils of Ageing. Her latest book is Radical Happiness: Moments of Collective Joy.