David Roll has written an exemplary biography delineating the role of Harry Hopkins during the depression and World War II. Roll explores all aspects of Hopkins life beginning with a brief biography of his pre-Roosevelt administration life then he goes on to detail the relationship between Hopkins and FDR. Roll brings the reader into the White House during the depression and the Second World War. You are presented with the importance of Hopkins’ work assisting the poor in the 1930s and initiating and implementing FDR’s personal diplomacy during the war. Hopkins’ relationships with Churchill and Stalin were important to the success of the grand coalition against the Nazis and Roll does an excellent job dealing with FDR’s nuanced strategy to win the war and set up a peaceful postwar period. Roll has created the best work on Hopkins and it is sure to remain so for years to come.