Find all of the best science fiction book authors of all time at Alibris, including: Ursula K. Le Guin: One of the most popular female authors of all time, her works feature diverse characters and societies that are just as groundbreaking today. H.G. Wells: An English writer known as one of the pioneers of science fiction whose novels include space travel, planes, and the internet before any of these things were possible. Arthur C. Clarke: Known for his novel 2001: A Space Odyssey, is one of three of 'The Big Three' science fiction writers. Ray Bradbury: One of the most popular science fiction authors of all time and known for his books, film, and television works. Octavia E. Butler: Groundbreaking author of many dystopian novels focusing on themes of women's rights, global warming, and Black injustice, she has won all the major Sci-Fi awards, along with a Macarthur 'Genius' grant and PEN Lifetime Achievement Award.