f service to philosophy students of all levels and to their teachers, this reader provides modern, accurate translations of the texts necessary for a careful study of most aspects of Aristotle's philosophy. In selecting the texts Professor J. L. Ackrill has drawn on his broad experience of teaching graduate classes, and his choice reflects issues of current philosophical interest as well as the perennial themes. Only recent translations which achieve a high level of accuracy have been chosen; the aim is to place the Greekless reader, as nearly as possible, in the position of a reader of Greek. As an aid to study, Professor Ackrill supplies a valuable guide to the key topics covered. The guide gives references to the works or passages contained in the reader, and indication of their interrelations, and current bibliography.