The Little Book of Common Sense Investing: The Only Way to Guarantee Your Fair Share of Stock Market Returns is a 2007 and 2017 book on index investing, by John C. Bogle, the founder and former CEO of the Vanguard Group. He focuses on index funds, which will give the investor the average market return, and on keeping investing costs low, so that the index fund investor will consistently do better than other investors, after costs. Trying to beat the market "is a loser's game," according to Bogle and "the more the managers and brokers take, the less investors make."