Best-selling financial author John Mauldin asked 12 of today's most successful investors to share their most valuable investment secrets. The result is a dozen clearly written essays, distilling decades of financial experience into easy-to-grasp tips anyone can put into practice. Just One Thing details these and other essential principles in practical, non-technical language: (1) Reap the fruits of compound interest by investing early and often; (2) Beat the fluctuating stock market by systematically buying and reinvesting in zero coupon bonds; (3) Buy and hold winning investments but quickly sell losing ones.