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Douglas Noël Adams (11th March 1952–11th May 2001) was an English radio comic dramatist and novelist, most notably of the Hitchhiker's Guide to the Galaxy series. Hitchhiker's began on radio, and developed into a "trilogy" of five books (which sold more than fifteen million copies during his lifetime), as well as a television series, a stage show, a comic book series, a computer game, and a feature film that was completed after Adams's death.