Herbert A. Davidson was Professor of Hebrew Emeritus and Research Professor at the University of California, Los Angeles. He was the author of 'The Philosophy of Abraham Shalom', 'Proofs for Eternity, Creation, and the Existence of God in Medieval Islamic and Jewish Philosophy', 'Alfarabi, Avicenna, and Averroes on Intellect', and 'Moses Maimonides, The Man and His Work', and editor of a medieval Hebrew translation of Averroes' 'Middle Commentary on the Isagoge and Categories' (and translator of the English edition of this).