This document defines and provides brief descriptions of various genres of writing, including expository/nonfiction, biography, autobiography, fantasy, folklore, poetry, mystery, realistic fiction, historical fiction, and science fiction. It explains that expository writing aims to inform using facts, a biography is a third-person account of someone's life, and an autobiography is a first-person telling of one's own life story. It also outlines the key characteristics of fantasy, folklore, poetry, mystery, realistic fiction, historical fiction, and science fiction genres.