Poetry is a type of literature based on the interplay of words and rhythm. It often employs rhyme and meter (a set of rules governing the number and arrangement of syllables in each line). In poetry, words are strung together to form sounds, images, and ideas that might be too complex or abstract to describe directly.

Poetry was once written according to fairly strict rules of meter and rhyme, and each culture had its own rules. For example, Anglo-Saxon poets had their own rhyme schemes and meters, while Greek poets and Arabic poets had others. Although these classical forms are still widely used today, modern poets frequently do away with rules altogether – their poems generally do not rhyme, and do not fit any particular meter. These poems, however, still have a rhythmic quality and seek to create beauty through their words.