James M. Kouzes (Orinda, CA; www.leadershipchallenge.com) is the Dean’s Executive Fellow of Leadership, Leavey School of Business at Santa Clara University, and lectures on leadership around the world to corporations, governments, and nonprofits.

He has been working with Barry Z. Posner  (Berkeley, CA; www.leadershipchallenge.com) for more than 30 years, studying leaders, researching leadership, conducting leadership development seminars, and serving as leaders themselves in various capacities. They are coauthors of several leadership books including Learning Leadership and the award-winning, best-selling book The Leadership Challenge. Since its first edition in 1987, The Leadership Challenge has sold more than 2.5 million copies worldwide and is available in more than 20 languages. Kouzes and Posner have coauthored more than a dozen other award-winning leadership books and are frequent keynote speakers. Each has conducted leadership development programs for hundreds of organisations.