Gerry Canavan is an assistant professor of twentieth- and twenty-first-century literature in the Department of English at Marquette University. He is the co-editor, with Kim Stanley Robinson, of Green Planets: Ecology and Science Fiction (2014) and, with Eric Carl Link, of The Cambridge Companion to American Science Fiction (Cambridge, 2015). His first monograph is Octavia E. Butler (2016). Eric Carl Link is Professor of American Literature and Dean of the College of Arts and Sciences at Purdue University Fort Wayne. His many publications include The Vast and Terrible Drama: American Literary Naturalism in the Late Nineteenth Century (2004), Understanding Philip K. Dick (2009), and Crosscurrents: Readings in the Disciplines (2012).  He is the editor or co-editor of numerous volumes, including The Cambridge Companion to American Science Fiction (co-edited with Gerry Canavan, Cambridge, 2015).