A.S. King has been called “One of the best Y.A. writers working today” by the New York Times Book Review. King is the author of highly-acclaimed novels including 2020 Michael L. Printz Award winner and LA Times Book Prize finalist DIG, 2016's Still Life with Tornado, 2015’s surrealist I Crawl Through It, Glory O'Brien's History of the Future, Reality Boy, the 2012 Los Angeles Times Book Prize winner Ask the Passengers, Everybody Sees the Ants, 2011 Michael L. Printz Honor Book Please Ignore Vera Dietz among others. She also writes Middle Grade fiction as Amy Sarig King.

She is a faculty member of the Writing for Children and Young Adults MFA program at Vermont College of Fine Arts and spends many months of the year traveling the country speaking to high school and university students, educators, and humans who care about the mental health of young people. After more than a decade living self-sufficiently and teaching literacy to adults in Ireland, she now lives in Pennsylvania.