You can get a free home study course from the Cato Institute – professionally developed audio programs. Listed and/or download at no charge and study at your own pace.
From Cato’s description of this course:
The Cato Home Study Course immerses you in the thoughts and views of John Locke, Thomas Jefferson, Thomas Paine, James Madison, Adam Smith, Voltaire, John Stuart Mill, Henry David Thoreau, Ayn Rand, F.A. Hayek, Milton Friedman, and others. You are stimulated and surrounded by their ground-breaking ideas on liberty, justice, property, constitutionalism, free trade, capitalism, toleration, and peace.
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