When this book came out, there were surprisingly few books about Pacific Northwest Coast artwork, and many of the books that had been written were out of print.
I suppose it's possible that the author or publisher honestly felt they saw a niche that needed to be filled, and intended to produce a simple, helpful book. But regardless of their intent, the impression I came away with was that this book was thrown together in order to cash in on the rising interest and, at that time, paucity of reference material related to this artform.
The book is remarkably short, there is a lack of useful information about the artform or its elements, and many of the designs that are included in the book do not even appear to be native to this style of art.
I hate to pan a book, because I'm a part-time writer myself, but facts are facts. Regardless of what you are looking for when it comes to Northwest Coast Art - how to understand it, style variations amongst different northwest tribes, how to draw this type of art, etc. -- this book will not provide it for you. The only reason I can think of for buying this book is because you want a copy of every book ever written on the topic. Otherwise, don't waste your money on this one.