If your workplace offers a 401k or a 403b account, that is an ideal vehicle for your investments. Within that retirement account, you might choose a target date fund or several low-fee passively managed stock and bond mutual funds. It's also helpful for new investors to familiarize themselves with the investment basics. You can learn more about how to invest in this free microbook called Invest and Grow Your Wealth or other investment information websites such as Investopedia or Morningstar.