Gary K. Wolfe is contributing editor and senior reviewer for Locus magazine, where he has written a monthly review column since 1991 and currently sits on the board of the Locus Science Fiction Foundation. He also writes a regular column on science fiction for the Chicago Tribune literary supplement "Printers' Row."

His critical work on science fiction and fantasy includes The Known and the Unknown: The Iconography of Science Fiction (Eaton Award, 1981), David Lindsay, Critical Terms for Science Fiction and Fantasy: A Glossary and Guide to Scholarship, Harlan Ellison: The Edge of Forever (with Ellen R. Weil), Soundings: Reviews 1992—1996, (British Science Fiction Association Award for best nonfiction, 2006; finalist for the Locus Award and the Hugo Award), Bearings: Reviews 1997-2001 (finalist, Hugo Award), Sightings: Reviews 1997-2001,and Evaporating Genres: Essays on Fantastic Literature (Locus Award, 2012).

Wolfe received the Pilgrim Award from the Science Fiction Research Association and the Distinguished Scholarship Award from the International Association for the Fantastic in the Arts. In 2007, he received a World Fantasy Award for criticism and reviews. His essays have appeared in Science-Fiction Studies, Foundation, Extrapolation, Conjunctions, Modern Fiction Studies, The Journal of the Fantastic in the Arts, and other journals, as well as in many collections and reference books, including The Cambridge Companion to Science Fiction, the Cambridge Companion to Fantasy, and Parabolas of Science Fiction, edited by Brian Attebery and Veronica Hollinger (2013). Also in 2013, his "Scoping the Exits" was the introduction to Guest of Honor Kit Reed's major collection The Story Until Now. Wolfe edited Up the Bright River, the first posthumous collection of Philip Jose Farmer stories, The Best of Joe Haldeman (with Jonathan Strahan), and the two-volume American Science Fiction: Nine Classic Novels of the 1950s, (Library of America, 2012), for which he also developed a website. With Jonathan Strahan, he hosts the weekly Coode Street Podcast, three times nominated for a Hugo Award.

A graduate of the University of Kansas and the University of Chicago, Wolfe is Professor of Humanities at Roosevelt University in Chicago.