For half a century, Peter F. Drucker has been teacher and adviser to senior managers in business, human service organizations, and government. Sometimes called the godfather of modern management, he combines an acute understanding of socio-economic forces with practical insights into how leaders can turn turbulence into opportunity. With a rare gift for synthesis, Drucker nourishes his insatiable mind on a full range of intellectual disciplines, from Japanese art to network theory in higher mathematics. Yet he learns most from in-depth conversation with clients and students: a global network of men and women who draw their ideas from action and act on ideas.