"Legal, historical and philosophical perspectives" -- Cover.

Includes bibliographical references and index.

pt.1. Custom and morality: natural law, customary law and ius gentium -- Pitfalls in the interpretation of customary law / Frederick Schauer -- The moral role of conventions / Ross Harrison -- Habit and convention at the foundation of custom / James Bernard Murphy -- Custom, ordinance and natural right in Gratian's Decretum / Jean Porter -- Vitoria and Suarez on ius gentium, natural law, and custom / Brian Tierney -- Custom and positivity: an examination of the philosophic ground of the Hegel-Savigny controversy / Christoph Kletzer.

pt.2. Custom and the law: custom, common law and customary international law -- Custom in medieval law / David Ibbetson -- Siege warfare in the early modern age: a study on the customary laws of war / Randall Lesaffer -- The idea of common law as custom / Alan Cromartie -- Three ways of writing a treatise on public international law: textbooks and the nature of customary international law / Amanda Perrau-Saussine -- Custom, common law reasoning and the law of nations in the nineteenth century / Michael Lobban -- Custom in international law: a normative practice account / Gerald J. Postema -- Customary international law and the quest for global justice / John Tasioulas.