John C. Bogle introduces us to low-cost, passive index funds as a sustainable investing strategy, so we can get the retirement savings we need without the hassle of choosing stocks.

John 'Jack' Bogle, the inventor of the index fund, was nothing short of a genius.

When everyone tried to beat the market with great stock picks and then charge expensive fees for it, Bogle thought: 'Why not just mimic what the indexes are doing and not manage anything?'

Bogle's idea turned into one of the most prevailing investment ideas of the 21st century, and the investment firm he founded, The Vanguard Group, remains one of the most respected companies in the world.

In this little book, Bogle outlines why index funds are still one of the safest and stress-free ways of investing today, and how we can get started with one.