The Evolution of EU Counter-Terrorism: European Security Policy after 9/11

Competition Law in the EU: Principles, Substance, Enforcement

Ideology and System Change in the USSR and East Europe

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

International Counterterrorism Bureaucracies in the United Nations and the European Union

Witsec: Inside the Federal Witness Protection Program

European Union Politics: Edition 3

Explaining EU Internal Security Cooperation: The Problem(s) of Producing Public Goods

European Integration: A Political History, Edition 2

EU Borders and Shifting Internal Security: Technology, Externalization and Accountability

The Political System of the European Union: Edition 4

Theorizing Internal Security in the European Union

Everyone Loses: The Ukraine Crisis and the Ruinous Contest for Post-Soviet Eurasia

Putting security governance to the test

Catastrophe 1914: Europe Goes to War

Studying ‘Effectiveness’ in International Relations: A guide for students and scholars

Interventions: A Life in War and Peace

International Relations: Theories in Action

The Politicisation of Social Europe: Conflict Dynamics and Welfare Integration

EU Administrative Law