This probably is the sixth of the Mountaineers Outdoor Expert Series books that I have purchased as published by the Mountaineers Books. As with those other texts, I was able to learn some things and was surprised and disappointed at the information which was not covered. This book is no exception.
On the positive side, there is very good instruction on roped skiing and on situations requiring belay stations and stances with skis. The avalanche safety section is good, but not definitive. The strong point of this book is the techniques for skiing in various terrain, along with the transitions that inevitably occur. For this, I would say this is one of the better, more up-to-date instructional books.
A big disappointment comes with the lack of depth in discussing the merits of various gear options. For example, in the beginning there was a brief illustration of the history of telemark vs. alpine touring setups, followed by a bare discussion about the merits of each. This fundamental question is then quickly dismissed simply by the statement "the best answer remains to choose the right tool for the job, or quite possibly to go with whatever style you prefer." That completely misses the point on why someone would buy this in the first place; these experts should give much more information to the reader before the readers embark on the very expensive quest to discover this for themselves...the reason for an "expert" series in the first place.
Another example is their discussion on ski weight. It starts out good, but then the authors punt again by saying "Shop at a store where the salesperson can answer technical questions and can point you in the right direction for your intended application." But isn't this the reason one would buy this book?? Having very frustrating experiences with so-called "expert" salespeople in many of these stores leaves much to be desired, which is why I would like the opinions of the experts who wrote this book. This punting on fundamental gear questions grows tiresome quickly...
There is no discussion on the merits of wax or XCG/Crown/Fishscale means of level or uphill locomotion. And there is nary anything about using mountaineering boots in conjuction with ski setups...only an acknowledgement that you can. These examples of lame treatment of important gear questions frankly minimizes the utility of this book. Certainly, the authors have an opinion about such things; the reason people like me buy books by experts is to read their reasoned opinions. This gives nothing of the sort in order to be "gear" neutral (a sort of "political correctness" imported to an "expert" book so as to perhaps not offend any company or various gear afficionados...)
A second and larger disappointment is that this book deals minimally with hauling gear for winter camping/expedition purposes. For all intents and purposes, this book should be entitled "Day-Trip Backcountry Skiing" because there is hardly anything referring to the load-carrying complications of overnight and/or expedition-type traveling. There is no instructions on how to rig a pulk/sled, or how to rig a backpack even for overnight use. Absolutely nothing on winter camping after the skiing, which to me is the essense of ski mountaineering.
In sum, the good technique instruction in this book is worth the purchase price. But this definitely is not the definitive Ski Mountaineering book...if this is what you are looking for, you might need to look further...I'm still searching.