There are different forms of poetry. Some forms of poetry can be determined by just looking at the poem. You can tell a poem is a haiku because of the line lengths. There are specific line lengths for a haiku. An epic is a long narrative poem usually about a historical event. Lyrics are poems that are usually set to music for a song. Each regular poem contains stanzas which is the equivalent to paragraph in an essay. Some poems rhyme where others do not. Poems also have rhythm and there are different types of rhythm. Other types of poems include elegies and limericks.