The New York Times, Wall Street Journal, and BusinessWeek best seller reveals the leadership success behind Mary Kay Inc.Mary Kay Inc. is one of the best-run and most successful companies in the world. With his unlimited access to its employees and management, Jim Underwood provides insights into a unique and extraordinarily successful business, one founded upon a simple set of powerful principles. These principles have influenced the lives of hundreds of thousands of employees worldwide, and can be applied to the improvement of companies at any size.