Gary Westfahl is adjunct professor at the University of La Verne, CA. His previous books include Science Fiction, Canonization, Marginalization, and the Academy (2002), Unearthly Visions: Approaches to Science Fiction and Fantasy Art (2002), and Worlds Enough and Time: Explorations of Time in Science Fiction and Fantasy (2002), all available from Greenwood Press.
George Slusser is professor of comparative literature at the University of California, Riverside. He has written several books about science fiction authors and coedited numerous scholarly studies.