This text draws together contributions of leading international legal scholars respecting major themes of the future of international law in the 21st century. The papers have been collected in honour of the late Professor Kenneth R. Simmonds, former Director of the British Institute of International and Comparative Law and Professor of Law at Queen Mary and Westfield College, University of London. The book is divided into three parts: public international law; international dispute resolution; and European and other regional integration, which constitute the important themes and currents in contemporary international law. The sections also represent the areas that were of personal interest to Professor Simmonds and in which he was a leading contributor until his death.