This book is a keen analysis of Aristotle's Nichomachean Ethics. Although only 130 pages, Urmson explains Aristotle's ideas very precisely. Urmson's diction and economy of words are evidence of his great learning on the subject. He thinks and write like a master. My only complaint is that the two page index is inadequate. But in a short book, that is not fatal.
Urmson offers a clear, concise, and even handling of all the major issues Nicomachean Ethics contains. The thematic structure of the book is outstanding. Urmson is like a grandfather who understands the "modern" difficulties of the day but is peacefully removed from their "pull."