Martin Rees is Astronomer Royal, former President of the Royal Society, Fellow (and former Master) of Trinity College, Cambridge, and Emeritus Professor of Cosmology and Astrophysics at the University of Cambridge. He sits as a member of the UK House of Lords.

Greg Bear is one of the world's leading hard SF authors. A multiple Hugo and Nebula award winner, he sold his first short story, at the age of fifteen, to Robert Lowndes's Famous Science Fiction.

His novels Blood Music and Eon are both Gollancz Masterworks. A full-time writer, he lives in Washington with his family.

Hugh Howey spent eight years living on boats and working as a yacht captain for the rich and famous. It wasn't until the love of his life carried him away from these vagabond ways that he began to pursue literary adventures, rather than literal ones.

Hugh wrote and self-published the Wool trilogy, which won rave reviews and praise from readers, and whose three books have gone on to become international bestsellers. He lives in Jupiter, Florida, with his wife Amber and their dog Bella.

Douglas Rushkoff is the author of Present Shock- When Everything Happens Now as well as a dozen other bestselling books on media, technology, and culture, including Program or Be Programmed, Media Virus, Life Inc and the novel Ecstasy Club. He is Professor of Media Theory and Digital Economics at CUNY/Queens. He wrote the graphic novels Testament and A.D.D., and made the television documentaries Generation Like, Merchants of Cool, The Persuaders, and Digital Nation. He lives in New York, and lectures about media, society, and economics around the world.