Literature may consist of texts bas

Literature may consist of texts based on factual information (journalistic or non-fiction), a category that may also include polemical works, biography, and reflective essays, or it may consist of texts based on imagination (such as fiction, poetry, or drama). Literature written in poetry emphasizes the aesthetic and rhythmic qualities of language-such as sound, symbolism, and metre-to evoke meanings in addition to, or in place of, ordinary meanings, while literature written in prose applies ordinary grammatical structure and the natural flow of speech. Literature can also be classified according to historical periods, genres, and political influences. While the concept of genre has broadened over the centuries, in general, a genre consists of artistic works that fall within a certain central theme; examples of genre include romance, mystery, crime, fantasy, erotica, and adventure, among others.