I just finished listening* to How to Talk to Anyone, Anytime, Anywhere: The Secrets of Good Communication by Larry King...
Its pretty good and I highly recommend it. For those who don't know, Larry King is a famous TV and radio personality in the US known for his show "Larry King Live" on CNN. And those who have seen him will tell you that he knows what to speak, when to speak and how to speak!
In this book, Larry King pens down some of the things he has learned in his life about speaking. He talks about all kinds of speaking - speaking at parties, speaking at meetings, speaking to members of the opposite sex, speaking to sell, speaking to negotiate, speaking to your boss/employee, speaking at an interview, speaking to an audience... he covers almost every thing you need to know about speaking. Being a powerful speaker himself, he is able to get his point across in a very powerful manner. And keeping in line with his own advice on brevity, the whole (audio) book is just about 90 minutes long!
Very well written - precise, to the point and enjoyable reading (listening)!
If you're in/around NUS (Singapore), do drop me a note if you'd like to borrow the book/CD.