Dale Carnegie (Nov. 24,1888 - Nov. 1,1955) was an American writer and lecturer, and the developer of courses in self-Improvement, Salesmanship, Corporate training, Public speaking, and Internal personal skills. One of the core ideas in his books is that it is possible to change other people's behaviour by changing one's behaviour towards them. All of his books are international best seller. Best selling book on Human Relations. The book focuses on 'Peace and Happiness', 'Fundamental Techniques in Handling People', 'Winning People to Your Way of Thinking' and 'How to change, people without giving offense or arousing resentment.' The book also focuses on - 'How to banish the boredom', 'The big secret of dealing with people' and 'How to get Co-operation'.