The Index Card by Helaine Olen and Harold Pollack There are ten simple rules for investing and money management and they can all fit on an index card. The Index Card: Why Personal Finance Doesn't Have to Be Complicated ($13) does a deep dive into those ten rules and how you can take control of your finances. It even comes with an easy-to-follow action plan. Image Source: amazon.com The Index Card: Why Personal Finance Doesn't Have to Be Complicated $13 from amazon.com Buy Now