Harold Koontz (1909-1984), was a consultant for US's largest business organizations. He co-authored the book Principles of Management with Cyril J. O'Donnell which has sold around two million copies and has been translated into 15 languages. He died at the age of 75 on Feb 11 1984, after suffering from arthritis. [1]
Mr. Koontz, was a professor of business management at University of California, Los Angeles. He started as a cost analyst in 1936, he received his doctorate from Yale University. His approach to management was "human relations". He rightly said manage-men-t. where "t" stands for tactfully.