 Noted writers in the field of comic books are Neil Gaiman, and Alan Moore; Gaiman also produces graphic novels.In the later decades of the 20th Century, the genre of science fiction began to be taken more seriously because of the work of writers such as Arthur C. Clarke's (""), Isaac Asimov, Ursula K. Le Guin, Robert Heinlein, Michael Moorcock and Kim Stanley Robinson.Another prominent writer in this genre, Douglas Adams, is particularly associated with the comic science fiction work, "The Hitchhiker's Guide to the Galaxy", which began life as a radio series in 1978.