John Scalzi is an American science fiction author and online writer. He is best known for his works and publishing’s, the main ones being Old Man’s War, a three part series, as well as his blog Whatever. He was a former president of the Science Fiction and Fantasy Writers of America. He has also written nonfiction books and columns on a variety of topics ranging from finance, video games, films, astronomy, and writing itself. He is also an ordained minister, as well as a creative consultant for the TV series Stargate Universe.