If you have paid taxes, borrowed money, invested, or bought anything, Janet Yellen has had more influence over your wallet than any other person on earth. No other person in American history has served as Chair of the White House Council of Economic Advisors, then Chair of the Federal Reserve, and now, Secretary of the Treasury. 
Jon Hilsenrath, an award-winning writer for The Wall Street Journal, has written the definitive biography of Janet Yellen and her Nobel Prize-winning husband, economist George Akerlof. Prepare to be amazed.