Colman McCarthy wrote in The Nation July 21, 2008,
Few writers have been closer to Day than Robert Ellsberg. He took a five-year student sabbatical from Harvard in the mid-1970s to join Day at the New York Worker, washing dishes, unclogging the toilets and editing the newspaper. This summer Ellsberg, now the editor and publisher of Orbis Books, comes forward with The Duty of Delight: The Diaries of Dorothy Day. It is 669 pages of sere and flexuous prose, virtuosic in its candor.