Instruct: Classify a given Amazon review as either positive or negative.
Query: not even a layman can use this

A complete waste of money on my part. I have read chapter 2 over and over,thinking "perhaps I missed something." But alas, I can not seem to figure out the damned compass. Do not waste your hard earned money on this item. Your better off taking the classes at an R.E.I. outdoors store. The little test at the end of the book is not enough to make anyone confident anywhere. The one thing this book was good for was keeping me warm out in the wilderness when I threw it in the campfire. Perhaps invest in a more thorough navigation book, and pass on this mediocre one.