Greg Bear is the author of more than thirty books of science fiction and fantasy. He is married to Astrid Anderson Bear and is the father of Erik and Alexandra. Awarded two Hugos and five Nebulas for his fiction, one of two authors to win a Nebula in every category, Bear has been called the "Best working writer of hard science fiction" by The Ultimate Encyclopedia of Science Fiction. Bear has served on political and scientific action committees and has advised Microsoft Corporation, the U.S. Army, the CIA, Sandia National Laboratories, Callison Architecture, Inc., Homeland Security, and other groups and agencies.