Defining Creative Nonfiction, Narrative Nonfiction, Memoir, Autobiography, and Biography In this post, learn the definitions and differences between creative nonfiction, narrative nonfiction, memoir, autobiography, and biography so that you know which genre you're writing. Author: Feb 23, 2009 Q. At first I thought I was writing "narrative nonfiction." As I proceed through the book, I have begun to wonder whether I might be writing "creative nonfiction," or even an "autobiography." Could you please further elucidate the distinctions? - Mark A. Well let's see...Narrative nonfiction IS creativ...