Sir Herbert Butterfield was one of the leading British historians of the Twentieth Century . A diplomatic historian by training, he branched out into a variety of fields including historiography, the history of science and international theory. The International Thought of Herbert Butterfield brings together material from Butterfield's previously unpublished papers and a critical commentary from two leading Butterfield scholars: Paul Sharp and Karl Schweizer. They recover Butterfield's contribution to international thought, particularly his role as a founding member of the British Committee on the theory of international politics (also known as the English School).