'This is an original, well-informed, sharply written, stimulating normative appraisal of a growing phenomenon that certainly merits this attention. Its argument goes against the assumption that the trend toward multiple citizenship is fundamentally unproblematic. I am confident the book will impact the views of many scholars, whilst spurring others to productive, critical engagements.' Rogers Smith, Christopher H. Browne Distinguished Professor of Political Science and Associate Dean for Social Sciences, University of Pennsylvania
'This is impressive scholarship, well-argued and clearly written, with a light and occasionally witty touch that makes it a very good, even pleasurable read.' Christian Joppke, Executive Director, Institute of Sociology, University of Bern