A product of more than five years of research, Mallaby's magisterial biography of Alan Greenspan brings into focus the mysterious point where politics and the economy meet. Through Greenspan's story, Mallaby casts every presidency from Nixon to George W. Bush in a fresh new light. The story of Greenspan is also the story of the making of modern finance, for good and for ill. The Man Who Knew is a searching reckoning with what exactly comprised the art, and the possible, in the career of Alan Greenspan. --