Poul Anderson (1926-2001) was one of the most prolific and popular writers in science fiction. He won the Hugo Award seven times and the Nebula Award three times, as well as many other awards, notably including the Grand Master Award of the Science Fiction Writers of America for a lifetime of distinguished achievement. With a degree in physics and a wide knowledge of other fields of science, as well as a passion for history and mythology, he was noted for building stories on a solid foundation of real science, as well as for being one of the most skilled creators of fast-paced adventure stories. He was author of more than one hundred science fiction and fantasy novels and story collections, and several hundred short stories, as well as historical novels, mysteries, and nonfiction books. He wrote several series, notably the Technic Civilization novels and stories, the Psychotechnic League series, the Harvest of Stars novels, and his Time Patrol series, along with novels such as The High Crusade, Three Hearts and Three Lions, and The Broken Sword.