This is an excerpt from Dollar Scholar, the Money newsletter where managing editor Julia Glum teaches you the modern money ...

If you’re an investor looking to understand the benefits of compound interest, consider the example set by the legendary Warren Buffett. The 93-year-old’s net worth has grown to $137 billion over the ...

Compound interest can help turbocharge your savings and investments, or it can quickly lead to an unruly balance, keeping you stuck in a cycle of debt. Its magic can help you earn more — or owe more.