James M. Kouzes and Barry Z. Posner are the coauthors of the classic bestselling books The Leadership Challenge, The Truth About Leadership, A Leader's Legacy, Encouraging the Heart, and over a dozen other books and workbooks on leadership. They also developed the highly-acclaimed Leadership Practices Inventory (LPI), a 360-degree assessment tool based on The Five Practices of Exemplary Leadership. Jim is the Dean's Executive Fellow of Leadership and Barry is Professor of Leadership at Santa Clara University's Leavey School of Business. They are among the world's most trusted and influential scholars on leadership. For more information, please visit www.credibility-book.com