John C. Bogle's The Little Book of Index Investing is a power-packed explanation of why outperforming the market is an investor illusion. Instead, the founder of The Vanguard Group—the man who's been called "the conscience of the investment industry"*—recommends a simple, time-tested investment strategy that can deliver the greatest return to the greatest number of investors: indexing. Why? Investing is a zero-sum game where transaction costs, taxes, poor investment diversificatio...