Gary K. Wolfe has been reviewing for Locus Magazine since 1991 and for the Chicago Tribune since 2013. His reviews have been collected in Soundings: Reviews 1992-1996 (Old Earth Books, 2005; BSFA Award winner, Hugo finalist), Bearings: Reviews 1997-2001 (Beccon Publications, 2010), and Sightings: Reviews 2002-2006 (Beccon Publications, 2011). His earlier books include The Known and the Unknown: The Iconography of Science Fiction (Kent State University Press, 1979; Eaton Award winner), David Lindsay (Starmont House, 1982), Evaporating Genres: Essays on Fantastic Literature (Wesleyan University Press, 2011; Locus Award dinner), and Harlan Ellison: The Edge of Forever (with Ellen Weil; Ohio State University Press, 2001). For the Library of America, he edited American Science Fiction: Nine Classic Novels of the 1950s (2012) and American Science Fiction: Eight Classic Novels of the 1960s (2019).

He has received the Pilgrim Award from the Science Fiction Research Association, the Distinguished Scholarship Award from the International Association for the Fantastic in the Arts, and a World Fantasy Award for criticism. His 24-lecture series, How Great Science Fiction Works, appeared from The Great Courses in 2016. He has received eight Hugo nominations—two for his reviews collections and six for The Coode Street Podcast (which he has co-hosted with Jonathan Strahan for more than 350 episodes). He is Emeritus Professor of Humanities at Roosevelt University, edits the Modern Masters of Science Fiction series of monographs for the University of Illinois Press, and serves on the editorial boards of The Journal of the Fantastic in the Arts and Science-Fiction Studies. He lives in Chicago.