The United Nations International Criminal Tribunals: The Former Yugoslavia, Rwanda and Sierra Leone is the first book entirely devoted to these three United Nations jurisdictions, providing a comprehensive account of their respective mandates and of the main characteristics of their work. The author, William A. Schabas, Director of the Irish Centre for Human Rights in Galway and former Commissioner with the Sierra Leone Truth and Reconciliation Commission, is a renowned expert in the field of human rights and international criminal law. As with his earlier publications, including Genocide in International Law (Cambridge University Press, 2000), this book is a detailed and well-written piece of research. Although the style is scholastic, the book is full of anecdotes, making it an easy read. Based on extensive research on how the drafting of the statutes evolved as well as an examination of other sources, the book presents the applicable law to be adjudicated before the three international criminal tribunals set up by the United Nations to deal with atrocities committed in the former Yugoslavia, Rwanda and Sierra Leone. It also reviews the extensive jurisprudence developed by these three courts, focusing particularly on substantive law. As such, it constitutes a unique and impressive guide to these important international criminal jurisdictions.