"The Profits of Religion: An Essay in Economic Interpretation is a nonfiction book, first published in 1917, by the American novelist and muckraking journalist Upton Sinclair. It is a snapshot of the religious movements in the U.S. before its entry into World War I.The book is the first of the \u201CDead Hand\u201D series: six books Sinclair wrote on American institutions."@en . . . "The Profits of Religion: An Essay in Economic Interpretation"@en .