The concept of identity has become widespread within the social and behavioral sciences, cutting across disciplines from psychiatry and psychology to political science and sociology. Introduced more than fifty years ago, identity theory is a social psychological theory that attempts to understand person's identities, their sources in interaction and society, their processes of operation, and their consequences for interaction and society from a sociological perspective. In this fully updated second edition of Identity Theory, Peter J. Burke and Jan E. Stets expand and refine their discussion of identity theory. Each chapter has been significantly revised and chapters have been added to address new theoretical developments and empirical research in the field. They cover identity characteristics, the processes and outcomes of identity verification, and the operation of identities to detail in particular the role of emotional, behavioral, and cognitive processes. In addition, Burke
and Stets explore the multiple identities individuals hold from their multiple positions in society and organizations as well as the multiple identities activated by many people interacting in groups and organizations. Written in an accessible style, this revised edition of Identity Theory continues to make the full range of this powerful theory understandable to readers at all levels.

Peter J. Burke is Distinguished Professor of the Graduate Division at the University of California at Riverside (UCR). He has served as Chair of the Department of Sociology at UCR Chair of the Department of Sociology at Indiana University, Bloomington, and Editor of Social Psychology Quarterly. One of the originators of Identity Theory, his research draws on Complexity Theory, Artificial Intelligence, and Computer Simulation to understand (1) how individuals, acting as agents with specific identities, come together in interaction to create groups, organizations and societies, and (2) how these social structures constrain and limit the kinds of actions that individuals can take. He has published over 90 research papers and 5 books. He is a Fellow of the American Association for the Advancement of Science and Fellow of the Association for Psychological Science. He is past chair of the American Sociological Association (ASA) Section on Social Psychology and the ASA Section on Theory. He
is the winner of the 2003 ASA Cooley-Mead Award for Lifetime Contributions to Distinguished Scholarship in Social Psychology. He is the recipient of research grants from the National Science Foundation.

Jan E. Stets is currently Distinguished Professor in the Department of Sociology and Director of the Social Psychology Research Laboratory at the University of California, Riverside (UCR). She has served as Co-Chair of the Department of Sociology at UCR, Director of the Sociology Program at the National Science Foundation, and Co-Editor of Social Psychology Quarterly. She works in the areas of self and identity, emotions, and morality. She is the author of 10 books and over 100 papers. Her Sociology of Emotions (2005) has been translated into Japanese, Croatian, Polish, and Chinese. Her Handbook of the Sociology of Emotions (2007) received the 2008 Outstanding Contribution Award from the American Sociological Association (ASA) Section on Emotions. She is a Fellow of the American Association for the Advancement of Science and Fellow of the Society for Experimental Social Psychology. She is past chair of the ASA Section on Emotions, the ASA Section on Social Psychology, and the ASA
Section on Altruism, Morality, and Social Solidarity. She is the 2020 ASA Cooley-Mead Award for Lifetime Contributions to Distinguished Scholarship in Social Psychology. She is the recipient of research grants from the National Science Foundation.