Prose is the language of everyday speech and writing. It is also one of the two major forms of literary expression. The other is poetry. Letters and newspaper and magazine articles are written in prose. So are biographies, essays, histories, novels, and a majority of plays. Most prose, unlike much poetry, has no regular meter. Prose also lacks rhyme, which is a feature of many poems. However, prose writers often use such poetic devices as alliteration and repetition, and some writers compose highly rhythmical prose. In many cases, a reader cannot clearly distinguish between prose and poetry.