There are many examples of fixed form poetry, but one of the most popular is the sonnet. The sonnet is a 14-line poem that is typically written in iambic pentameter (a rhythmic pattern of five stressed and unstressed syllables). The sonnet usually has a specific rhyme scheme, which adds to its overall structure and makes it easier to remember. Other examples of fixed form poetry include the ghazal, villanelle, sestina, and haiku.