I've seen all of these books miscategorized as novels here on ListChallenges. I'm not pedantic enough to distinguish between novel and novella. But I'm sure pedantic enough to distinguish between memoir and autofic, poetry and prose, true crime and mystery, drama and novel, short story collection and standalone. Nor do I think that any author who claimed their work was a true story, only to be discredited as a fraud and fabricator, should be allowed to re-classify their book as a novel (see the collected works of Beatrice Sparks). It's true, some confusion is inevitable, and some books, like "In Cold Blood," blur the line between fiction and non-fiction. But every time someone mislabels "Anne Frank: The Diary of a Young Girl" as "fiction," the Neo-Nazis win.