Scott Westerfeld was born in Dallas, Texas on May 5, 1963. He received a degree in philosophy from Vassar in 1985. Before becoming a full time writer, he held several jobs including factory worker, software designer, editor, and substitute teacher. His works for young adults include the Uglies series, the Midnighters series, and The Last Days, an ALA Best Book for Young Adults. He also writes science fiction novels for adults. He has won numerous awards including a Special Citation for the 2000 Philip K. Dick Award for Evolution's Darling, a Victorian Premier's Award for So Yesterday, and an Aurealis Award for The Secret Hour.
Keith Thompson was born in England but grew up in Canada. He works as an artist specializing in fantasy art and illustration. He has illustrated 2 books with young adult author Scott Westerfeld, Behemoth and Leviathan.