As the author I think it excellent. However here is a review posted my a reader on Amazon.com:
Anne McGovern (Golden, CO) - I've been working as an outdoor leader and whitewater guide for three years, first with kids on summer programs and currently with a variety of age groups year-round. This book helped me to evaluate the way I work with trip participants and co-workers. It opened my eyes to new ideas and has greatly expanded the bad of tricks I use in the field. I appreciated the safety-first focus and the author's friendly tone. Also, the stories, some of which are classics, made the book entertaining. It is unfortunate I didn't read this book a couple of years ago when I was launching into this line of work. If you don't have a lot of education in this field (I was a biology major) but you're involved in some outdoor leadership role this book can be a great help to you. Personally I'm loaning it to all the guides I work with.