What does it take to become a citizen of a particular nation? Is it justified to restrict membership of a society, and if so, on what grounds? This book explores a series of pressing, controversial issues surrounding the acquisition of citizenship, in theory and practice.

GIDEON CALDER is Reader in Ethics and Social Philosophy at the University of Wales, Newport, UK PHILLIP COLE is Associate Dean in the School of Health and Social Sciences at the University of Wales, Newport, UK STEVE FENTON is Professor of Sociology at the University of Bristol, UK JAMES HAMPSHIRE is Lecturer in Politics at the Department of Politics and Contemporary European Studies, University of Sussex, UK ISEULT HONOHAN is Senior Lecturer, School of Politics and International Relations, University College Dublin, UK ROBIN MANN is Associate Research Fellow at the Institute of Ageing, University of Oxford, UK DAVID OWEN is Professor of Social and Political Philosophy at the University of Southampton, UK ROSEMARY SALES is Professor of Social Policy at Middlesex University, UK JONATHAN SEGLOW is Senior Lecturer in Politics at Royal Holloway, University of London, UK ANDREW SHORTEN is Lecturer in the Department of Politics and Public Administration at the University of Limerick, UK TIZIANA TORRESI is a member of St Antony's College and the Department of Politics and International Relations, at the University of Oxford, UK