"Social Movements" is a comprehensive introduction and critical analysis of collective action in society today. In this new edition, the authors have updated all chapters with the most recent scientific literature, expanded on topics such as individual motivations, new media, public policies, and governance. It draws on research and empirical work across the social sciences to address the key questions in this international field. The new edition expands on topics such as individual motivations, new media, public policies, and governance. It has been redesigned in a more user-friendly format.