|The best sakes tend to come from cold places|
Sake books tend to get bogged down early in describing how sake is made. It's an important question, but the answer isn't simple, nor does it have much to do with the really key questions about sake, such as How do I buy a good sake? How long does it last on the shelf? Does the region matter?
Also, many people who are interested in sake know something about it already. Very basic intro books won't interest them, but if a sake book is too advanced, the market for it is tiny.
John Gauntner gets around both these problems by writing "Sake Confidential" in a straight-talking, behind-the-scenes style.