Two broad categories of Prose:

Fiction and non-Fiction

Fiction is an imaginary invention, usually a tale conceived by the writer, although often with a basis in actuality; a writer may make up a story out of whole cloth, or he may, out of some real incident or real set of characters, mold a story.

Non-Fiction does not tell an imagined story. It may relate the actual story of a man’s life, in which case it is a biography. Essay is other main form of non-fiction, which develops an opinion or describes a way of doing something, often with notable distinctions of style.