Combining research, literary and biographical examples of leadership, and interviews with leaders and followers, this book provides an in-depth overview of leadership that identifies what works—and what doesn't. Leadership is much more than a management technique: it is possessing the insight to see where it is possible to make a difference, and also having the tools to make that difference. Leadership for the 21st Century defines leadership, explains how it is practiced, and provides a rich portrait of what it is to be a leader, covering relevant and timely topics such as the importance of diversity, the role of social media in 21st-century leadership, and how to pass a leadership role on to another. It provides priceless information not only on what constitutes successful leadership but also illuminates why leadership falters. Based primarily upon research, this book assembles leadership lessons from more than 100 biographies and autobiographies of a diverse group of leaders, including individuals from the worlds of science, economics, business, and human rights, and also includes thought on leadership derived from of many other individuals representing both leaders and those who follow the leaders. As a result, the author presents not only a clear "how-to" guidebook for those wishing to lead, but also a comprehensive, multifaceted examination of leadership from several relevant perspectives.