Elizabeth Kuhnke 
Body Language For Dummies 

If you are puzzled by other people or want to improve the impression you give, knowing about body language could be the key. In this book you ll discover how the body reveals what people really mean and how you can use your body and your expressions to improve your self-image to others. It explores why we give the signals we do, how to read the most common expressions and goes on to show how you can use your new understanding of body language for success at work, in relationships and in your communication. Actions really do speak louder than words!