George Raymond Richard Martin 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. He is best known for his international bestselling series of epic fantasy novels, A Song of Ice and Fire, which was later adapted into the HBO dramatic series Game of Thrones.
Martin serves as the series' co-executive producer, and also scripted four episodes of the series. In 2005, Lev Grossman of Time called Martin "the American Tolkien", and the magazine later named him one of the "2011 Time 100", a list of the "most influential people in the world."
