ACKNOWLEDGMENTS
Our thanks to those authors who permitted the use of their stories, and to the estates and their representatives who intervened for those authors unreachable without time travel (we raise a glass to absent friends). Among the very helpful agents deserving thanks are Spectrum Literary Agency, the Richard Meredith Agency, the Virginia Kidd Agency, Barry N. Malzberg, and David Drake. For help and advice, many thanks to John O’Neil and his Black Gate webzine, R.K. Robinson, Jason McGregor, Chris Willrich, Rich Horton, Marie Bilodeau, and others I’m unforgivably forgetting. And thanks to the Internet Speculative Fiction Database (ISFDB.org) for existing and being a handy source of raw data, and to the devoted volunteers who maintain that very useful site.