Literature is the collected works and texts or any form of writing. Literature is available in several form, including poetry, drama, essays, prose, journalism, fiction, and non-fiction. Literature is commonly referred to as prose fiction. Prose fiction is when the writer of a text does not follow a formal structure when writing his/her work. Narrative fiction is generally referred to as novels and short stories. There are several categories that a work of prose fiction may fall under depending on the length or number of words contained in a text or manuscript: flash fiction, short story, novella, or novel.