JOHN C. BOGLE created Vanguard in 1974 and served as chairman and chief until 1996 and senior chairman until 2000. In 1999, Fortune magazine named Mr. Bogle as one of the four "Investment Giants" of the twentieth century; in 2004, TIME magazine named him one of the world's 100 most powerful and influential people. Bogle is the author of eight books, most recently Common Sense on Mutual Funds, 10th Anniversary Edition.