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.

India, Jan. 9 -- When you plan a personal loan, understanding how interest works is just as important as knowing the loan ...

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