Adam Garceau

This is the most important book I have ever read about negotiating or communicating in general. It's not about manipulating people, it's about helping both parties come to the best conclusion and the best outcome. However, for the situation where you need to win it all, the things you learn in this book will help with that, too. I've used these tactics as a customer service representative, sales rep, son, and soldier in the Army. I am constantly referencing this book to my coworkers and singing its praises. I would call this the definitive practical guide to negotiating. After having read other books such as "getting past no" by William Ury, this book goes over more of the hard skills involved in a negotiation. If you're the kind of person who likes to know the why behind the how, I would recommend reading getting past no after this for clarification.