Neil Walker holds the Regius Chair of Public Law and the Law of Nature and Nations at the University of Edinburgh. His main area of expertise is constitutional theory. He has published extensively on the constitutional dimension of legal order at sub-state, state, supranational and global levels. He has also published at length on the relationship between security, legal order and political community. He maintains a more general interest in broader questions of legal theory as well as in various substantive dimensions of UK and EU public law. Previously he was Professor of Legal and Constitutional Theory at the University of Aberdeen (1996-2000), and Professor of European Law at the European University Institute in Florence (2000-8), where he was also the first Dean of Studies (2002-5). He has also held various visiting appointments - including Eugene Einaudi Chair of European Studies, University of Cornell (2007); Distinguished Visiting Professor of Law, University of Toronto (2007), Global Professor of Law, New York University (2011-12), Sidley Austin-Robert D. McLean Visiting Professor of Law, Yale University (2014-5), International  Francqui  Chair, University of Leuven, (2017).He has an LLD (Honoris Causa) from the University of Uppsala, is a fellow of the British Academy, and is also a Fellow of the Royal Society of Edinburgh. His most recent books are the monograph,  Intimations of Global Law (Cambridge, 2015) and the edited collection,  The Scottish Independence Referendum: Constitutional and Political Implications (co-editor, Oxford, 2016).