Jim Collins writes in his introduction to Drucker’s classic text Management. He writes:
Business and social entrepreneur Bob Buford once observed that Drucker contributed as much to the triumph of free society as any other individual. I agree. For free society to function we must have high-performing, self-governed institution in every sector, not just in business, but equally in the social sectors. Without that, as Drucker himself pointed out, the only workable alternative is totalitarian tyranny. Strong institutions, in turn, depend directly on excellent management….and no individual had a greater impact on the practice of management and no single book captures its essence better than his seminal text, Management.