The Sake Handbook by John Gauntner, revised second edition 2002: Tuttle Publishing, Boston, MA. ISBN 0-8048-3425-3.
Gauntner is probably the most prolific non-Japanese sake writer, although he lives in Japan. He publishes a free monthly Sake World Newsletter on the internet.
The Book of Sake: A Connoisseur’s Guide by Philip Harper, 2006: Kodansha Intl., Tokyo, Japan. ISBN 13:978-4-7700-2998-0
Fred Eckhardt lives, writes about and drinks beer in Portland, OR. He is the author of The Essentials of Beer Style and Saké.