If your retirement plan is to be financially secure and you don't have generous pension income coming to you, you'll probably want to learn how to invest, which for most people means moving beyond a savings account and certificates of deposit to stocks and bonds, establishing a strategy and using investment vehicles such as Roth IRAs.

Taking control of your financial future can make your retirement much more comfortable and less stressful. Here's a guide to what you need to know about how to invest.

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