This is a great little guide for the beginning day tripper or overnight backpacker. Having spent a fair amount of time hiking and backpacking our local southwestern desert's wilderness areas, I can vouch for a lot of the advise given in this book. One thing I found missing among his equipment lists, though, was a functional hiking stick, which can serve to help you maintain your balance when on rough terrain or while crossing streams. Likewise, I found no advice for actually doing stream crossings, which can be touchy with fast water, slick rocks, and the potential of being dragged under by your backpack if you don't take the initiative to unstrap it enough to be able to get it off quickly in the event you go for a dip.
The appendices are helpful summations of things you will need as well as organizations that you can affiliate with. However, I would have found the latter to be better arranged if the organizations had been listed by state. (Would someone in California think to look under N for North Star High Adventure Team in San Jose?) I'm sure that this list is dated as well and am uncertain if the book has been updated since I obtained my copy.
Still, the basic information is sound and will serve the beginner well, acting as a base for knowledge that will accumulate with additional experience.