George R. R. Martin is a writer.
George Raymond Richard Martin -LRB- born George Raymond Martin ; September 20 , 1948 -RRB- , often referred to as GRRM , is an American novelist and short-story writer in the fantasy , horror , and science fiction genres , screenwriter , and television producer .	screenwriter	screenwriter	American	United States	horror	horror fiction	fantasy	fantasy fiction	novelist	novelist	short-story	short story	science fiction	science fiction
