The concepts of power and identity are vital to many areas of social research. In this edited collection, a prominent set of contributors explore the double relationship between power and group identity, focusing on two complementary lines of enquiry: * In what ways can the powerful dictate the identities of the powerless? * How can the powerless redefine their identity to challenge the powerful? Each chapter is written by leading authorities in the field, and investigates a particular aspect of the interplay of identity and power via a range of empirical contexts such as colonialism, nationalism, collective action, and electoral politics. The case studies include early modern Goa under Portuguese rule, the tribes of modern-day Jordan, the use of sexual stereotyping and objectification by female activists seeking to transform social systems, and a revisiting of the classic Stanford Prison Experiment. The chapters include contributions from a variety of social disciplines and research methodologies, and together provide a comprehensive overview of a subject at the cutting-edge of social and political psychology. Power and Identity will be of great interest to researchers, graduates and upper-level undergraduate students from across the social sciences.