Acknowledgements This volume brings together three forums originally published online and as Robert Schuman Centre Working Papers and adds to these an original essay by Jo Shaw. Each of the debates was co-edited by myself with the authors of the lead essays introducing them. The forum ‘Should EU Citizens Living in Other Member States Vote There in National Elections?’ was kicked off and co-edited by Philippe Cayla and Catriona Seth, the forum ‘Freedom of Movement Under Attack: Is It Worth Defending as the Core of EU Citizenship?’ by Floris de Witte, and the forum ‘Should EU Citizenship Be Duty-Free?’ by Maurizio Ferrera. I am very grateful to them for agreeing to this book publication as well as to the altogether 41 authors in this book whose contributions have engaged with the controversial questions we asked them to answer in a spirit of a respectful and frank debate. My most profound thanks go to Jelena Dzankic and Oriane Caligaro who were involved in these debates at different times as coordinators of the EUDO Citizenship project, as well as to Anna Kyriazi who has provided extremely competent and reliable assistance in editing this book. Robert Schuman Centre European University Institute Fiesole, Italy Rainer Bauböck v