Marilynn B. Brewer is Professor of Psychology at Ohio State University. Her primary research interests include social cognition, intergroup relations, and social identities and the self concept. She is the author of numerous books and articles, including Intergroup Relations (with Norman Miller, 1996) and has served as President of the American Psychological Association and as editor of the journal Personality and Social Psychology.

Miles Hewstone is Professor of Social Psychology at Oxford University. His current research interests include the reduction of intergroup conflict, intergroup contact, and the social influence of majorities and minorities. He is the author of numerous books and articles, including Introduction to Social Psychology (edited with Wolfgang Stroebe and Geoffrey M. Stephenson, Third Edition 2001). He is founding co-editor of the European Review of Social Psychology.