Warren Gamaliel Bennis is an American scholar, organizational consultant and author, widely regarded as a pioneer of the contemporary field of Leadership studies. Bennis is University Professor and Distinguished Professor of Business Administration and Founding Chairman of The Leadership Institute at the University of Southern California.

Within the area of management, Bennis sought to move from theory to practice in 1967, taking the post of provost of the State University of New York at Buffalo and the presidency of the University of Cincinnati in 1971. He authored two books on leadership during his presidency: The Leaning Ivory Tower, 1973, and The Unconscious Conspiracy: Why Leaders Can’t Lead, 1976.

Bennis chose to return to the life of a teacher, consultant and author following a heart attack in 1979, joining the faculty of the University of Southern California. Most of the best-known of his 27 books followed, including the bestselling Leaders and On Becoming A Leader, both translated into 21 languages. An Invented Life was nominated for a Pulitzer Prize. More recent books, Organizing Genius, 1997, Co-Leaders, 1999, and Managing The Dream, 2000, summarize Bennis’s interests in leadership, judgment, organizational change and creative collaboration. Geeks & Geezers, 2002, examines the differences and similarities between leaders thirty years and younger and leaders seventy years and older.

Bennis spent time as an adviser to four United States presidents and several other public figures, and has also consulted for numerous FORTUNE 500 companies.

He has also spent time on the faculties of Harvard and Boston University and taught at the Indian Institute of Management Calcutta (IIM-C), INSEAD and IMD. In addition to his current posts at USC, Bennis serves as chairman of the Advisory Board of the Center for Public Leadership at Harvard University’s Kennedy School