New York Times bestselling author Grady Hendrix's novels include Horrorstoer , My Best Friend's Exorcism , We Sold Our Souls , and The Southern Book Club's Guide to Slaying Vampires . He's also the author of Paperbacks from Hell , a history of the horror paperback boom of the Seventies and Eighties, which won the Bram Stoker Award for Superior Achievement in Non-Fiction . He's been nominated for the Shirley Jackson Award and the Locus Award, and tweets @grady_hendrix