Book excerpt: Although Peter Drucker, “The Father of Modern Management,” died in 2005, his timeless teachings are studied and practiced by forward-thinking managers worldwide. His lessons and wisdom on the topic of leadership—the central element of management—are in constant demand, yet he wrote little under that actual subject heading. In Drucker on Leadership, William A. Cohen explores Drucker’s lost leadership lessons—why they are missing, what they are, why they are important, and how to apply them. As Cohen explains, Drucker was ambivalent about leadership for much of his career, making it clear that leadership was not by itself “good or desirable.” While Drucker struggled with the concept of leadership, he was well aware that it had a critical impact on the accomplishment of all projects and human endeavors. There is no book from Drucker specifically dedicated to leadership, but a wealth of information about leadership can be found scattered throughout his 40 books and hundreds of articles. Drucker’s teachings about leadership have saved many corporations from failure and helped guide others to outstanding success. Many of the leadership concepts revealed in this book will surprise and perhaps shock Drucker’s followers. For example, who would have thought that Peter Drucker taught that “leadership is a marketing job” or that “the best leadership lessons for business or any nonprofit organization come from the military”? Written for anyone who values the insights of the man whose name is synonymous with excellence in management, Drucker on Leadership offers a deeper understanding of what makes an extraordinary leader.