David Brin is a scientist, speaker, and world-known author. His novels have been New York Times Bestsellers, winning multiple Hugo, Nebula and other awards. At least a dozen have been translated into more than twenty languages. Existence, his latest novel, offers an unusual scenario for first contact. His ecological thriller, Earth, foreshadowed global warming, cyberwarfare and near-future trends such as the World Wide Web. A movie, directed by Kevin Costner, was loosely based on his post-apocalyptic novel, The Postman. Startide Rising won the Hugo and Nebula Awards for best novel. The Uplift War also won the Hugo Award. His non-fiction book—The Transparent Society: Will Technology Force Us to Choose Between Freedom and Privacy? — deals with secrecy in the modern world. It won the Freedom of Speech Prize from the American Library Association. Brin serves on advisory committees dealing with subjects as diverse as national defense and homeland security, astronomy and space exploration, SETI, nanotechnology, and philanthropy. David appears frequently on TV, including "The Universe" and on the History Channel's "Life After People." Full and updated at: http://www.davidbrin.com/biography.htm

Gregory Benford is an American science fiction author and astrophysicist who is on the faculty of the Department of Physics and Astronomy at the University of California, Irvine. As a science fiction author, Benford is best known for the Galactic Center Saga novels, beginning with In the Ocean of Night (1977). This series postulates a galaxy in which sentient organic life is in constant warfare with sentient mechanical life.

Greg Bear is one of the world's leading hard SF authors. He sold his first short story, at the age of fifteen, to Robert Lowndes' Famous Science Fiction. A full-time writer, he lives in Washington State with his family. He is married to Astrid Anderson Bear. He is the son-in-law of Poul Anderson. They are the parents of two children, Erik and Alexandra. http://us.macmillan.com/author/gregbear