I highly recommend Basic Economics by Thomas Sowell. The title is not very imaginative but I found it a great place to start before looking at more complicated concepts.
I second this recommendation. I learned a lot about economics from this book...and felt my liberal latte-drinking hippy self shifting a good deal towards the right :).
Thirded. I would also recommend Economics for Dummies. Sure, it's a "For Dummies" book but it actually goes into quite a bit of detail and gives good visual / graph based explanations for things that Sowell covers more verbally.
http://www.amazon.com/Basic-Economics-3rd-Ed-Economy/dp/0465...