Oran Doyle is a Professor in Law at Trinity College Dublin, Ireland. He is the author of The Constitution of Ireland: A Contextual Analysis (2018) and a member of the Working Group on Unification Referendums on the Island of Ireland. Aileen McHarg has published widely on UK and Scottish public law. Previous edited books include The Scottish Independence Referendum: Constitutional and Political Implications (2016). She is joint general editor of the journal Public Law. Jo Murkens is Associate Professor in the Department of Law at the London School of Economics and Political Science. He has published in the areas of public law, EU law, and comparative constitutional law, and is a member of the editorial board of Public Law.