Prof. Harlan G. Cohen (University of Georgia) joins us to talk about sources of international law, precedent, opinio juris, fragmentation, pluralism and behavioural approaches to international law. Publications referred to in the episode: Harlan G. Cohen, “The Primitive Lawyer Speaks!: Thoughts on the Concepts of International and Rabbinic Laws”, Villanova Law Review 64, no. 5 (2020): 665–678. Emanuel Adler, Communitarian International Relations: The epistemic foundations of International Relations (London: Routledge, 2005). Harlan G. Cohen, “Finding International Law: Rethinking the Doctrine of Sources”, Iowa Law Review 93, no. 1 (2007): 65–129. Harlan G. Cohen, “Finding International Law, Part II: Our Fragmenting Legal Community”, New York University Journal of International Law & Politics 44 (2012): 1050–1107. Harlan G. Cohen and Timothy Meyer (eds), International Law as Behaviour (Cambridge: Cambridge University Press, 2021). Chaim N. Saiman, Halakhah: The Rabbinic Idea of Law (Princeton: Princeton University Press, 2018). Robert Cover, Justice Accused: Antislavery and the Judicial Process (New Haven: Yale University Press, 1975). Robert Cover, “Violence and the Word”, Yale Law Journal 95 (1986): 1601–1629. Robert Cover, “The Supreme Court, 1982 Term—Foreword: Nomos and Narrative”, Harvard Law Review 97 (1983): 4-68.