An author may use a pen name if his or her real name is likely to be confused with that of another author or notable individual. Some authors who regularly write in more than one genre use different pen names for each. Romance writer Nora Roberts writes erotic thrillers under the pen name J.D. Robb, and Samuel Langhorne Clemens used the aliases "Mark Twain" and "Sieur Louis de Conte" for different works. Similarly, an author who writes both fiction and non-fiction (such as the mathematician and fantasy writer Charles Dodgson, who wrote as Lewis Carroll) may use a pseudonym for fiction writing. Science fiction author Harry Turtledove has used the name H.N. Turtletaub for a number of historical novels he has written because he and his publisher felt that the presumed lower sales of those novels might hurt book store orders for the novels he writes under his own name.
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Bottle Opener
