eter F. Drucker (1909–2005) wrote extensively about managers, management, and organizations, and much of the conceptual framework for contemporary management theory derives from his work. For almost five decades after his first book, Drucker taught and wrote at Claremont College. Early training as a journalist and good knowledge of history and politics make his writing more akin to that of a novelist than a management theorist. Drucker’s work as a consultant to large corporations allowed him to study organizations firsthand and develop observations about managers. His views on the traits of leaders are especially compelling. Drucker concluded that there may be charismatic leaders, but they are too few in number to make a difference. His experience persuaded him that successful leaders come in all shapes and sizes and have a wide range of personalities