Given its coverage of over 300 rivers, this book is rich in information, economically written, and an ambitious undertaking by the author. In a subject area where many authors deal with the most common (and combative) fishing opportunities in Alaska only, Limeres and Pederson go far beyond that, including many remote and lesser-known areas as well. The format was not only efficient, but useful, making it easy to identify the fish timing and transportation information for each system. If there were areas of improvement, it would be in updating the flight and lodging information (there are many more such areas than indicated in this guide), providing additional outfitting contacts (i.e., for rafts/motors etc.), rating rough-camp opportunity of the systems (his category "no developed facilities" isn't as constructive as it could be), and re-checking the fish timing (silver salmon runs are generally longer than Limeres would indicate). Other than that, the authors are only slightly guilty of over-doing warnings about bears and weather, and recommending more fly patterns than one would ever bring to a given situation. Overall, this book is so comprehensive and well-written that I recommend you buy this book, and only this book -- other books offer much less information (and much more mis-information). I will definitely buy the next edition. What a bargain.