THE ART OF HUNTING HUMANS is brilliant. It's so good, in fact, that I almost wish it wasn't readily available to the type of people who would actually seek out a book with this title and focus.
Sidney Mazzi is an exceptionally astute observer of human nature and how communication (or the lack thereof) influences our behavior, from sales to media (as if those are really so different) to interpersonal relationships. He lays out the process--and provides more than enough background knowledge to understand the reasoning behind the process--for manipulating weak-minded people easily and most other people with some preparation and ill intent.
Of course there have been other books about manipulating people, but they're usually written from a gentler perspective. This book says explicitly, "Here's how humans and the the human thought process are flawed and weak, and here's how yo can capitalize on that to make people think and do what you want." I hope Mazzi's persistent reference to other humans as "prey" is simply an over-the-top literary mechanism, a la "A Modest Proposal," and not his genuine outlook on his fellow humans, but either way, a theme and style are maintained throughout and it works. (Even while being a little bit upsetting if you take it seriously.)
This book strikes me as especially appropriate for our current political climate in the U.S., in which many of these techniques are being employed by the sitting administration, much to the horror of those of us who are cognizant enough to recognize what's happening.