Toby Litt is best known for his “hip-lit” fiction, which, in its sharing of characters and themes across numerous stories and novels, has always taken an unusual, hybrid form. In Mutants, he applies his restless creativity to nonfiction. The book brings together twenty-six essays on a range of diverse topics, including writers and writing, and the technological world that informs and underpins it. Each essay is marked by Litt’s distinct voice, heedless of formal conventions and driven by a curiosity and a determination to give even the shortest piece enough conceptual heft to make it come alive. Taken as a whole, these pieces unexpectedly cohere into a manifesto of sorts, for a weirder, wilder, more willful fiction.