“Most people find economics complicated to the point of being impenetrable. Of all the subject areas within economics, monetary theory and policy may be the most challenging for the general public. Money itself is a bit puzzling. After all, how did it happen that we give other people real goods and services and are willing to accept little pieces of paper or metal, or even bits and bytes on a computer, in return?” – Steve Horwitz, An Introduction to Monetary Policy
What a wonderful short introduction to the subject of monetary policy. If you follow the link, you can read the entire paper.