- Fifty Key Thinkers in International Relations
- International Relations: The Key Concepts (Routledge Key Guides)
- Politicizing the International Criminal Court: The Convergence of Politics, Ethics, and Law
- Moral Responsibility in Twenty-First-Century Warfare: Just War Theory and the Ethical Challenges of Autonomous Weapons Systems (SUNY series in Ethics and the Challenges of Contemporary Warfare)
- Critical Theory of International Politics: Complementarity, Justice, and Governance