After growing up in a conservative middle-class Republican household and working several years as a left-wing journalist, Dorothy Day (1897-1980) converted to Catholicism and became an anomaly in American life for the next 50 years. As an orthodox Catholic, political radical, and a rebel who courted controversy, she was utterly devoted to serving the poor, and attracted three generations of admirers. In this biography, Day is shown to be a believer in civil disobedience, critical of capitalism and U.S. foreign policy, and as skeptical of modern liberalism as political conservatism.