The book "How to Win Friends and Influence" by Dale Carnegie is one of the wisest books ever written about human relations. The book includes several parts: First part: basic techniques for relating to people. Part Two: Six Ways to Get People to Like You Part three: a dozen ways to bring people to a general thought like you. Part Four: Nine ways to bring about change in people without offending or provoking opposition. Part five: letters that produce a miraculous result. Part Six: Seven Rules for Adding Happiness to Your Family Life. For details you must read the book
