Jan Klabbers is Professor of International Law at the University of Helsinki, Finland. Gianluigi Palombella is Professor of Law and Applied Legal Theory at the Sant'Anna School of Advanced Studies, University of Pisa.

• 1. Introduction: situating inter-legality Jan Klabbers and Gianluigi Palombella; Part I. Opening the Field: 2. 'Formats' of law and their intertwining Gianluigi Palombella; 3. Summum Ius, Summa Inuria: critical reflections on issues of responsibility, the legal form, inter-legality, and the limits of law Friedrich Kratochwil; 4. Between or beyond legal orders: questioning the concept of legal order Sanne Taekema; Part II. Realities and Inter-legality Questions: 5. Why and what (state) jurisdiction: legal pluralism, individual equality and territorial legitimacy Samantha Besson; 6. Inter-legality – citizenship – inter-citizenship Dimitry Kochenov; 7. Trade and inter-legality Antonello Tancredi; 8. Inter-legality and the protection of marine ecosystems Laura Pineschi; 9. Managing inter-legality: conceptualizing the EU's interactions with international investment law Panos Koutrakos; 10. The perils of complacency: the European human rights backlash Andras Sajó and Sergio Guiliano; 11. Inter-legality and criminal law Alberto di Martino; Part III. Shaping Inter-Legality: 12. Shaping inter-legality: the role of administrative law techniques and their implications Edoardo Chiti; 13. Global law as inter-contextuality and as inter-legality Poul Kjaer; 14. International courts as inter-legality hubs Yuval Shany; 15. Judging inter-legality Jan Klabbers; 16. Theory, realities and promises of inter-legality: a manifesto Gianluigi Palombella; Bibliography; Index.