Richard Crisp is a Reader in Social Psychology at the University of Birmingham. His research focuses on cognitive, motivational, and affective models of social categorization, group processes, and intergroup relations. He is a past winner of the British Psychology Society’s award for Outstanding Doctoral Research Contribution to Psychology, and the Society for the Psychological Study of Social Issues Louise Kidder Early Career Award for his work on multiple social categorization.Miles Hewstone is Professor of Social Psychology and Fellow of New College, Oxford. He has published widely on the topics of attribution theory, social cognition, stereotyping, social influence, and intergroup relations. He is co-founding editor of the European Review of Social Psychology, a former editor of the British Journal of Social Psychology and is a past winner of the British Psychology Society’s Spearman Medal and Presidents' Award.