The purpose of this book is to illustrate the importance of people skills in achieving success, using role models from history. It is estimated that IQ contributes approximately 20 percent to success, leaving 80 percent to other factors, such as EQ. Traits that make up Emotional Intelligence, including self-control, empathy and perseverance, are factors that can be improved upon, unlike IQ, which remains relatively fixed from early childhood. Doing what you are good at and what you want to be doing are also important factors in being successful, in addition to recognizing our weaknesses and strengths and working hard.