A longtime reader loved what we're doing with these Focus pages and called our editor, asking us to do a primer on the Federal Reserve. This took me three full days of work, including sending a PDF of the page to the Fed in D.C. to have the folks there check it over for accuracy. The result was OK, but I was left with this nagging feeling that I probably should have earned a master's degree with this one. Oh, and the reader? He was delighted… delighted enough to give me another suggestion. That one runs soon. Oct. 22, 2013.