Walter Jon Williams is an award-winning author who has been listed on the bestseller lists of the New York Times and the Times of London. He is the author of more than two dozen novels and collections of short fiction.

His first novel to attract serious public attention was Hardwired (1986), described by Roger Zelazny as a tough, sleek juggernaut of a story, punctuated by strobe-light movements, coursing to the wail of jets and the twang of steel guitars. In 2001 he won a Nebula Award for his novelette, Daddys World, and won again in 2005 for The Green Leopard Plague.

Walters subject matter has an unusually wide range, and include the glittering surfaces of Hardwired, the opulent tapestries of Aristoi, the bleak future police novel Days of Atonement, and the pensive young Mary Shelley of the novella Wall, Stone, Craft, which was nominated for a Hugo, Nebula, and a World Fantasy Award.

He has also written for George R. R. Martin's Wild Cards project.

His book The Fourth Wall, is a near-future thriller set in the world of alternate reality gaming.

Walter has also written for comics, the screen, and for television, and has worked in the gaming field. He was a writer for the alternate reality game Last Call Poker, and has scripted the mega-hit Spore.