The new edition of the classic text Group Processes: Dynamics within and Between Groups by Rupert Brown offers an extensive critical appraisal of theory and research on groups, making it one of the most respected texts in the field. This comprehensive third edition covers all essential dynamics of group processes and intergroup relations, ranging from group formation, norms, social influence, and leadership to group aggression, prejudice, solidarity, intergroup contact, and collective action.

Contemporary examples and plentiful charts, graphs, and illustrations complement discussions on the latest themes and current controversies in group psychology. Now thoroughly revised with significant new content, this edition introduces topics such as the contribution of groups to health and wellbeing, group-based emotions, hierarchy and oppression, intergroup helping and solidarity, acculturation, and reconciliation.

Sections on social influence, crowd behavior, leadership, prejudice, collective action, and intergroup contact have been comprehensively revised and updated to reflect two decades of development in these fields. Three interconnected themes—social identity, social context, and social action—highlight the impact of groups on self and self-worth, the significance and consequences of group membership, and how groups can serve as vehicles for members to effect change in their environments.

For over thirty years, this book has been a key text for understanding the complexities of group dynamics. It is essential reading for students and professionals interested in exploring the latest advancements in group psychology.