Books & Authors

Economics & Money

These three books, all relatively short and available online or for purchase, are an excellent starting point on sound economics.
Economics in One Lesson by Henry Hazlitt; online here
Essentials of Economics by Faustino Ballve; online here (.pdf)
An Introduction to Austrian Economics by Thomas C. Taylor; online here and here (.pdf)

Additional Introductory Reading in Economics
The Revolution: A Manifesto by Ron Paul, ch. 4; the audiobook is here
Making Economic Sense by Murray N. Rothbard
Pillars of Prosperity: Free Markets, Honest Money, Private Property by Ron Paul
Economic Policy: Thoughts for Today and Tomorrow by Ludwig von Mises
Free Market Economics: A Reader by Bettina Bien Greaves
The Politically Incorrect Guide to Capitalism by Robert P. Murphy
Free Market Economics: A Syllabus by Bettina Bien Greaves
The Church and the Market: A Catholic Defense of the Free Economy by Thomas E. Woods, Jr.
Whatever Happened to Penny Candy? by Richard J. Maybury (a great introduction to economics for homeschoolers; study guide included)

Foreign Policy

The Revolution: A Manifesto by Ron Paul, ch. 2 (audiobook)
A Foreign Policy of Freedom: 'Peace, Commerce, and Honest Friendship' by Ron Paul
Blowback: The Costs and Consequences of American Empire by Chalmers Johnson
Imperial Hubris: Why the West Is Losing the War on Terror by Michael Scheuer
The New American Militarism: How Americans Are Seduced by War by Andrew J. Bacevich

Constitution

The Declaration of Independence
The U.S. Constitution
The Articles of Confederation
The Federalist Papers and the Anti-Federalist Papers
Friends of the Constitution: Writings of the "Other" Federalists, 1787-1788, eds. Colleen A. Sheehan and Gary L. McDowell
Virginia Resolution of 1798
The Kentucky Resolutions of 1798
The Kentucky Resolution of 1799
The Documentary History of the Ratification of the Constitution (volumes VIII-X, on Virginia, are especially interesting)

 The Revolution: A Manifesto by Ron Paul, ch. 3 (audiobook)
Federalism: The Founders' Design by Raoul Berger
The Politically Incorrect Guide to the Constitution by Kevin R.C. Gutzman
Who Killed the Constitution? The Fate of American Liberty from World War I to George W. Bush by Thomas E. Woods, Jr. and Kevin R.C.      Gutzman
The Constitutional Thought of Thomas Jefferson by David N. Mayer
Reclaiming the American Revolution: The Kentucky and Virginia Resolutions and Their Legacy by William J. Watkins, Jr.
33 Questions About American History You're Not Supposed to Ask by Thomas E. Woods, Jr.
"The Constitution : Four Disputed Clauses" (mp3 audio) by Thomas E. Woods, Jr. (the Woods audio archive contains several dozen      lectures, some of which involve the Constitution)
 

Advanced Reading

New Views of the Constitution of the United States (1823) by John Taylor (probably the best Jeffersonian overview of the Constitution;      available in html and at Google Books)

Civil Liberties

General Reading

Glen Beck Common Sense
Glen Beck - Arguing With Idiots
Ron Paul