John C. Bogle

John Clifton "Jack" Bogle (May 8, 1929 – January 16, 2019) was an American investor, business magnate, and philanthropist. He was the founder and chief executive of The Vanguard Group, and is credited with creating the first index fund. His 1999 book Common Sense on Mutual Funds: New Imperatives for the Intelligent Investor became a bestseller and is considered a classic within the investment community.