While this is a charming book, it really doesn't merit the subtitle of "A Connoisseur's Guide".
The background material in Part One is pretty basic and, if one is a connoisseur, quite old hat with nothing new added.
Part Two does have an extensive list of whiskies and I did enjoy reading it. However, the comments are genrally brief and not to the level that might give a connoisseur new information.
So, while this is a nice book, the implication that it is an advanced work takes away the positives. It is really more of a beginner's overview; one title among a number that have been published. Important to applaud is that the author is female; a bit of an exception in a subject area dominated by males. Unfortunately, it is becoming dated in its facts. For example, Ardbeg on Islay is described as being closed; it closed in 1981 and reopened in 1997. Likely is that the author wishes that her publisher had asked for revisions rather than just reprinting the 1997 edition in 2003.