"The definitive biography of a banker, essayist, and editor of the Economist, by an acclaimed financial historian. During the upheavals of 2007-9, the chairman of the Federal Reserve had the name of a Victorian icon on the tip of his tongue: Walter Bagehot. Banker, man of letters, inventor of the Treasury bill, and author of Lombard Street, Bagehot prescribed the doctrines that--decades later--inspired the radical responses to the world's worst financial...