Vincent Starrett (1886–1974) was a Chicago journalist who became one of the world’s foremost experts on Sherlock Holmes. A books columnist for the Chicago Tribune, he also wrote biographies of authors such as Robert Louis Stevenson and Ambrose Bierce, various books on books and book collecting, plus Sherlockian pastiches and numerous short stories and novels. A founding member of the Baker Street Irregulars, he is perhaps known best today for The Private Life of Sherlock Holmes, an imaginative biography of the great detective.