Genres are often divided into sub-genres. Literature can be organized according to the "poetic genres" and the "prose genres". , Comedy Of Manners , Burlesque , and Satire .
Many times, the criteria used to divide up works into genres are not consistent, leading to works that belong to more than one genre. ''Romance'' and ''mystery'' are marked out by their plots, and ''Western'' by its setting, which means that a work can easily be a Western romance or Western mystery.
