Retired four-star general Stan McChrystal has studied leadership his whole adult life, from his first day at West Point to his most recent work with the corporate clients of the McChrystal Group. In this follow-up to his bestsellers My Share of the Task andTeam of Teams, McChrystal explores what leadership really means, debunking the many myths that have surrounded the concept. He focuses on thirteen great leaders, showing that the lessons we commonly draw from their lives are seldom the correct ones. Taking leadership lessons from Walt Disney, Coco Chanel, Maximilien Robespierre, Abu Musab Zarkawi, Margaret Thatcher, Albert Einstein, Leonard Bernstein, Martin Luther and many more, ultimately, McChrystal posits that different environments will require different leaders, and that followers will choose the leader they need. Aspiring leaders will be best served not by cultivating a standard set of textbook leadership qualities, but by learning to discern what is required in each situation.