I was curious about this topic (hey, I'm curious about lots of things!) and when I saw this at Half Price Books, figured, "why not?" It was pretty interesting. I'm not quite ready to start nailing coyotes, but at least I have some basic concepts.
(If you're wondering: the idea is to reduce the impact of varmints like coyotes, foxes and the like, as they kill cattle and chickens and generally annoy ranchers.)