John Bogle was a famous investor and author who founded the Vanguard Group, a company that introduced a radical, low-cost way to invest in mutual funds and other investments.
Bogle is credited as being the father of index investing, a strategy that enables investors to purchase mutual funds that track broad market indexes.
John Bogle is the author of several books, such as The Little Book of Common Sense Investing and Enough: True Measures of Money, Business, and Life, among others.