Jeffrey C. Alexander is the Lillian Chavenson Saden Professor of Sociology and also Chair of the Sociology Department at Yale University. He is the author of The Meanings of Social Life: A Cultural Sociology (2003), Cultural Trauma and Collective Identity (with Eyerman, Giesen, Smelser, and Sztompka (2004), and the editor (with Philip Smith) of The Cambridge Companion to Durkheim (2005).
Bernhard Giesen holds the chair for macro-sociology in the Department of History and Sociology at the University of Konstanz (Germany) and is an Associate Professor in the Department of Sociology at Yale University. Among the more than twenty books he has written and edited are The Intellectuals and the Nation: Collective Identity in a German Axial Age (Cambridge 1998) and Triumph and Trauma (2004).
Jason L. Mast is a Doctoral Candidate in Sociology at the University of California, Los Angeles, and a Visiting Fellow at Yale University's Department of Sociology and its Center for Cultural Sociology.