Marcel Maussen is Assistant Professor in Political Science at the University of Amsterdam, The Netherlands. His research interests include governance of religious and ethnic diversity, democratic theory, social inequality and normative theory. He recently co-edited a book on Colonial and post-colonial governance of Islam (2011) and a special issue in Comparative Education on religious schools in Europe.Ralph Grillo is Emeritus Professor of Social Anthropology at the University of Sussex, UK. He has written on migration, ethnicity and the governance of diversity, based on research in East Africa and Europe over many years. His current interests concern cultural diversity and legal processes in Europe, especially with respect to Muslims. He is co-editor of Legal Practice and Cultural Diversity (2009).