Gerry Canavan is an associate professor in the English department at Marquette University, teaching 20th- and 21st-century literature. His research projects include Science Fiction and Totality, as well as co-editing The Cambridge Companion to American Science Fiction and the journal Science Fiction Film and Television. His edited collection of critical essays, Green Planets: Ecology and Science Fiction, is available from Wesleyan University Press. He is also the author of Octavia E. Butler from the University of Illinois Press’s Modern Masters of Science Fiction series.