A Republican Europe of States: Cosmopolitanism, Intergovernmentalism and Democracy in the EU

The Real North Korea: Life and Politics in the Failed Stalinist Utopia

Soft Governance in Hard Politics: European Coordination of Anti-Poverty Policies in France and Germany

The Death of Democracy: Hitler's Rise to Power and the Downfall of the Weimar Republic

Europe as Ideological Resource: European Integration and Far Right Legitimation in France and Italy

The Parliament of Man: The Past, Present and Future of the United Nations

Victorian Liberalism: Nineteenth-century political thought and practice

On Palestine

Political Constitutionalism: A Republican Defence of the Constitutionality of Democracy

Baltic: The Future of Europe

Croce, Gramsci, Bobbio and the Italian Political Tradition

Nuclear War: The bestselling non-fiction thriller, shortlisted for the Baillie Gifford Prize 2024

Advanced Introduction to Comparative Constitutional Law: Second Edition

From Maastricht to Brexit: Democracy, Constitutionalism and Citizenship in the EU

The Political System of the European Union: Edition 4

Representation and Democracy in the EU: Does one come at the expense of the other?

Comparative Government and Politics: Edition 13

Witsec: Inside the Federal Witness Protection Program

Interventions: A Life in War and Peace

Project Europe: The Making of European Digital Innovation, Policy and Society