Introduction by Don M. Green, Executive Director, The Napoleon Hill Foundation The author will show you that success in life will be determined by your ability to get along with other people. By reading Cavett Robert's book, you can become part of the small, fabulously successful group that is responsible for the overwhelming majority of the positive results in the world today. Human Engineering can be defined as the science of knowing how to deal with people. Your personal success as well as your financial success is measured by your ability to get along with people. The lesson of human motivation will help you in your determination to meet your goals in life. This book will show you the proper steps in managing people and how to make them respond to your wishes. One of the important lessons in life is discovering how to sell yourself to others, and get them to help you in anything you may want to attempt. Follow the six principles in Cavett Robert's book and you can have more money and personal power than you ever dreamed possible.