The Effective Executive
Collins; Revised edition (January 3, 2006)
An effective executive does not need to be a leader in the typical sense of the word. Peter Drucker, the author of more than two dozen Harvard Business Review articles, said some of the best business and nonprofit CEOs he worked with over his 65-year consulting career were not stereotypical leaders. They ranged from extroverted to nearly reclusive, from easygoing to controlling, from generous to parsimonious.
What made them all effective is that they followed the same eight practices.