Virginie Van Ingelgom is a postdoctoral researcher F.R.S. - FNRS at the Institut de Sciences Politiques Louvain-Europe (UCLouvain) and an associate research fellow of the Centre for European Studies (Sciences Po Paris). Her dissertation - from which this book has grown - was awarded the Theseus Award for Promising Research on European Integration (2010), the French Political Science Association - Fondation Mattei Dogan Best Dissertation Prize (2011), and the ECPR Jean Blondel PhD Prize (2012). Dr Van Ingelgom is the author of several articles on the issue of legitimacy at national and European levels, on the possible emergence of a 'European community', and on the methodological issues of using qualitative comparative analysis. She recently co-authored (with S Duchesne, E Frazer & F Haegel) Citizens' Reactions to European Integration Compared: Overlooking Europe (2013, Palgrave). Her current teaching commitments include courses at UCLouvain, Sciences Po Paris and at the ECPR Summer School in Methods and Techniques.