Thomas Faist is Professor of Transnational Relations and Development Studies at the Faculty of Sociology at Bielefeld University. He is the author of The Volume and Dynamics of International Migration and Transnational Social Spaces (2000), Transnational Social Spaces (2004), and The Politics of Dual Citizenship in Europe (2007). He currently directs a project on transnational migration and development. He is the Deputy Editor of The Sociological Quarterly.