The UNCITRAL Model Law on International Commercial Arbitration was adopted in 1985 and amended in 2006. More than 65 countries have since revised their laws on international commercial arbitration by reference to the Model Law. The goal of the Model Law - coupled with the New York Convention of 1958 on the recognition and the enforcement of foreign arbitral awards - was to contribute to the establishment of a unified legal framework for the fair and efficient settlement of disputes arising in international commercial relations. This book - by the Association for International Arbitration (AIA) - measures the degree of unification which the Model Law has achieved and its contribution to the development of legal thinking on international arbitration during the past 25 years.