Question: Do Richard Matheson and Morgan Llywelyn write different genres of books than eachother?
Sentence (from "Richard Matheson"): He is best known as the author of "I Am Legend", a 1954 science fiction horror vampire novel that has been adapted for the screen four times, as well as the movie "Somewhere In Time" for which Matheson wrote the screenplay, based on his novel "Bid Time Return".
Relevant evidence: No