The 25th anniversary edition of the bestselling business classic, completely revised and updated For more than 25 years, The Leadership Challenge has been the most trusted source on becoming a better leader, selling more than 2 million copies in over 20 languages since its first publication. Based on Kouzes and Posner�s extensive research, this all-new edition casts their enduring work in context for today�s world, proving how leadership is a relationship that must be nurtured, and most importantly, that it can be learned. � Features over 100 all-new case studies and examples, which show The Five Practices of Exemplary Leadership in action around the world� Focuses on the toughest organizational challenges leaders face today� Addresses changes in how people work and what people want from their work An indispensable resource for leaders at all levels, this anniversary edition is a landmark update and must-read.