I'm almost done reading "The Creature from Jekyll Island", by Griffin. Having had little background in finance or economics, much of what's been happening in the financial markets the past several years was just a mystery to me, and about a year ago I decided I wanted to understand how it worked. CFJI has helped quite a bit. It's not an easy read, even though it's well written, simply due to the subject matter (I had to read ch. 10 three times). It nevertheless does a great job of explaining how modern fiat currency systems work, and the mechanisms used by nations' central banks today.