sounds like he's working at college level, and is looking for a libertarian economics text. How about Henry Hazlitt's Economics in One Lesson?
Oops! I see this has already been suggested by drengurinn. Consider this an "I second the motion." It's an eye-opening book.
Recommended reading: The Most Dangerous Superstition, http://www.amazon.com/Most-Dangerous-Superstition-Larken-Ros...
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