An International Bill of the Rights of Man, first published in 1945, is one of the seminal works on international human rights law. Its author, Sir Hersch Lauterpacht, is widely considered to be one of the great international lawyers of the 20th century. It continues to influence those studying and working in international human rights law today. It includes Professor Lauterpacht's study of natural law and natural right; and Professor Lauterpacht's own draft Bill of Human Rights. This republication once again makes this book available to scholars and students in the field. It features a new introduction by Professor Philippe Sands, QC, examining the world in which An International Bill of the Rights of Man was originally published and the lasting legacy of this classic work.