The Little Book of Common Sense Investing, written by John C. Bogle, is a comprehensive guide to passive investing. Bogle, the founder of Vanguard Group, advocates for low-cost index funds as the best investment option for most individuals. This book explains the benefits of index fund investing, such as diversification, low fees, and long-term performance. It also debunks common myths about active investing and provides practical advice on building a successful investment portfolio. The Little Book of Common Sense Investing is a must-read for anyone interested in achieving steady, long-term investment returns.