Clayton Christensen is the Kim B. Clark Professor of Business Administration at the Harvard Business School. He started four successful enterprises including Innosight, a consulting firm that uses his theories of innovation to help companies create new growth businesses. Besides advising major corporate executives, Clayton Christensen is the author of nine books and more than a hundred articles. He received his BA with honors in economics from Brigham Young University and an M.Phil. in applied econometrics from Oxford University, where he studied as a Rhodes Scholar. He received both an MBA with high distinction and a DBA from the Harvard Business School. Clayton Christensen was named a White House fellow and served as assistant to U.S. Transportation Secretaries Drew Lewis and Elizabeth Dole. He holds five honorary doctorates and an honorary chaired professorship at the Tsinghua University in Taiwan.