Which author wrote the novel "No Country for Old Men"?

Cormac McCarthy (born Charles Joseph McCarthy Jr., July 20, 1933) is an American writer who has written ten novels, two plays, two screenplays, and two short-stories, spanning the Western and post-apocalyptic genres. He is well known for his graphic depictions of violence and his unique writing style, recognizable by its lack of punctuation and attribution. He is widely regarded as one of the greatest contemporary American writers.

McCarthy originally conceived his work, "No Country for Old Men" (2005), as a screenplay before turning it into a novel. Consequently, the novel has little description of setting and is composed largely of dialogue. A western set in the 1980s, "No Country for Old Men" was adapted by the Coen brothers into a 2007 film of the same name, which won four Academy Awards and more than 75 film awards globally.