How to Argue and Win Every Time: At Home, at Work, in Court, Everywhere

I must admit to having begun this book with some skepticism. But now I have to say this is probably one of the most insightful books I've ever read. This book is not about argument per se - it's about communicating your point of view in a clear way that can be understood at all levels by your listeners - intellectual and emotional levels, and about listening to and interacting with 'the other'. I am not overstating the case if I say that I found wisdom on almost every single page - the rare wisdom that comes from learning from one's own life and the life of others. Read it. The read it again.

(One downer is that this particular printing isn't very good quality - look for the earlier editions.)