Many people believe that investing exists as a way for people who are already rich to get even richer. If you don't have much money to start with, it's difficult to impossible to become an investor. Nothing could be further from the truth.

Consider Warren Buffett, the most famed and probably greatest investor of all time. When you picture him, you picture what he is now — a billionaire, constantly appearing on lists of the world's richest people. But when Buffett got his start in investing, he was anything but rich. He was a kid, barely into puberty, from a middle-class household at best. He started investing by reading every book he could find on the subject as a preteen. Then he worked odd jobs and bought stocks with the money he made.