This Tajfel-edited volume brings together theoretical and empirical contributions that articulate the social identity perspective, emphasizing the psychological significance of group memberships in shaping individual behavior and intergroup attitudes. Drawing on social psychology research, the book develops Social Identity Theory and related frameworks to explain how categorization into groups influences self‑esteem, ingroup favoritism, out‑group discrimination, and conflict. It covers processes such as categorization, identity salience, ingroup bias, intergroup comparison, and collective action, situating them within broader debates about prejudice, norm compliance, and social change. The work has become a cornerstone in understanding social identity as a driver of both cohesion and conflict across social, cultural, and organizational settings.
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