Donatella della Porta is Professor of Political Science and Dean of the Faculty of Political and Social Sciences at the Scuola Normale Superiore, Florence, Italy. She is also Director of the PhD program in Political Science and Sociology, and she leads the Center on Social Movement Studies (Cosmos).
Mario Diani is Professor and Chair of the Department of Sociology and Social Research, University of Trento, Italy. He was formerly ICREA Research Professor in the Department of Political and Social Sciences of Universitat Pompeu Fabra, Barcelona from 2010–2012, and Professor of Sociology at Strathclyde University in Glasgow from 1996–2001.