This book is so important, so relevant, that I am even going to show you the back cover in this post. Written by a Stanford University professor, this book serves multiple purposes: asshole detection (in oneself and others), how to deal with assholes (we all must deal with them regularly), and how to not be an asshole (dare I say we've all had our moments, I have for sure).
The title, clearly controversial, really puts the content into perspective but I suspect there will be those who stray away thinking that this is just some kind of a joke or tongue-in-cheek (that sounds gross related to this title) quip containing nothing of serious value. The reality is a wonderful guide and should be offered free to all if not all as they climb the management ladder as a reminder that the people you are an asshole to while climbing are the same people who just may treat you like the asshole you are on your way back down.
While entertaining, the grim realities this book observes cover situations we all find ourselves in and offers real methods of coping. For even more assistance with the chronic asshole or to determine whether or not you are one, the author's blog offers an Asshole Rating Self-Exam (ARSE); I scored a 5 (not an asshole). This book is an enjoyable (though frightening considering the truths it makes reference to) read, I also listened to the unabridged audio version which was a special treat hearing a professional sounding guy say asshole a bunch and once again, dare I say, a must read?
Released in the mid-1990's this book is easily my favorite of the more than 20 books I've read thus far by James Patterson. With 

Dexter Morgan is a blood splatter analyst for the Miami police department with a secret, he's a serial killer. The twist is that he only kills that bad people that slip through the cracks of the system. With an uncanny sense to anticipate the killer's moves, his job puts him in the perfect position to track them down. In this first book in a series by Lindsay, there is a killer on the loose that Dexter feels strangely connected to as the killings are much like his own. Both intrigued and frightened, the killer lures Dexter into a game he can't refuse.