Warren Bennis (Los Angeles, CA) is one of the world's leading experts on leadership. A lecturer, consultant and writer, Dr. Bennis has been an advisor to four U.S. presidents, including John F. Kennedy and Ronald Reagan. He is Distinguished Professor of Business Administration at the University of Southern California and Founding Chairman of the University of Southern California's Leadership Institute. He is also Chair of the Advisory Board of the Kennedy School of Government's Center for Public Leadership at Harvard University. Bennis has written or edited 26 books, including the best selling Leaders and On Becoming a Leader, both translated into 21 languages. The Financial Times recently named Leaders as one of the top 50 business books of all time. In 1993 Addison-Wesley published a book of his essays, An Inverted Life: Reflections on Leadership and Change, which was nominated for a Pulitzer Prize. In 1998, Jossey-Bass republished his 1968 path-breaking book, The Temporary Society, co-authored with Philip Slater. His recent books, Organizing Genius, 1997, Co-Leaders, 1999, and Managing the Dream, 2000, summarize Bennis's major interests: Leadership, Change, Great Groups, and Powerful Partnerships. Bennis's latest book, Geeks & Geezers, 2002, examines the differences and similarities between leaders 30 years and younger and leaders 70 years and older.