Sean Scalmer is a Senior Lecturer in the School of Historical Studies, University of Melbourne. He is author of two books on the history of social movements - Dissent Events: Protest, the Media, and the Political Gimmick in Australia (2002) and The Little History of Australian Unionism (2006). He is also co-author with Sarah Maddison of Activist Wisdom: Practical Knowledge and Creative Tension in Social Movements and co-editor with Stuart Macintyre of What If? Australian History as It Might Have Been (2006).