Alasdair MacIntyre 
Short History of Ethics [PDF ebook] 
A History of Moral Philosophy from the Homeric Age to the Twentieth Century, Second Edition

A Short History of Ethics is a significant contribution written by one of the most important living philosophers. For the second edition Alasdair Mac Intyre has included a new preface in which he examines his book "thirty years on" and considers its impact. It remains an important work, ideal for all students interested in ethics and morality.