(William Ledbetter)   William Ledbetter is a Nebula Award winning author with three novels and more than seventy speculative fiction stories and non-fiction articles published in five languages, in publications such as Asimov's, Fantasy & Science Fiction, and Analog. He's been a space and technology geek since childhood and spent most of his non-writing career in the aerospace industry. His Killday novel series is available at Amazon, Barnes & Noble, Audible and Interstellar Flight Press.