John Kotter

John Kotter, professor emeritus at Harvard Business School, is often called the world’s foremost authority on leadership and change. His many books, including Leading Change and That's Not How We Do It Here!, have been translated into more than 200 foreign language editions and have been bestsellers around the world. He is a founder of Kotter International, a consulting firm that specializes in helping leaders transform their organizations. Holger Rathgeber is the coauthor of That's Not How We Do It Here!, a former executive at a medical products firm, and a principal at Kotter International.