The Conscience of a Conservative by Barry Goldwater
Human Action by Ludwig von Mises
Atlas Shrugged by Ayn Rand
The Revolution: A Manifesto by Ron Paul
End the Fed by Ron Paul
A Foreign Policy of Freedom by Ron Paul
Meltdown by Tom Woods
The Politically Incorrect Guide to the Great Depression by Robert Murphy
Broke by Glenn Beck
Economics in One Lesson by Henry Hazlitt
The New American Militarism: How Americans are seduced by war by Andrew Bacevich
Blowback by Chalmer Johnson
Imperial Hubris by Michael Scheuer
Where the Right Went Wrong by Patrick Buchanan
Silent Night:The Story of the World War I Christmas Truce by Sidney Weintraub
I also think that 'The case against the Fed' by Murray Rothbard should be on the list.