Karen Blixen and Julian Barnes both used pseudonyms in their works.
Julian Barnes Julian Patrick Barnes (born 19 January 1946) is an English writer. Barnes won the Man Booker Prize for his book "The Sense of an Ending" (2011), and three of his earlier books had been shortlisted for the Booker Prize: "Flaubert's Parrot" (1984), "England, England" (1998), and "Arthur & George" (2005). He has also written crime fiction under the pseudonym Dan Kavanagh. In addition to novels, Barnes has published collections of essays and short stories.
Josephine Bell Josephine Bell, pseudonym of Doris Bell Collier, (8 December 1897 – 24 April 1987), was an English physician and writer. Bell wrote nineteen novels and forty-five mystery novels in her lifetime, as well as radio plays, short stories, and series for women's magazines.