Theory of International Law at the Threshold of the 21st Century is a remarkable book, and is destined to become a standard work, without which no International Law library will be complete. The essays contained in this volume are written by the foremost experts, and the topics have been chosen with the greatest care, to reflect the most pressing current problems facing the world community. The research and writing made available in this collection will be of enduring worth, and will be studied and quoted for decades to come. It follows in the finest traditions of the major collective works published by Martinus Nijhoff/Kluwer Law International. It is most appropriate that a remarkable book should be dedicated to a remarkable man, and the editor of the volume Professor Jerzy Makarczyk has ensured that the choice of writers, the choice of topics and the quality of the material do indeed honour one of the leading international lawyers of his generation: Professor Krzysztof Skubiszewski.