An essential work of literary criticism that had a significant impact on Western literature is Horace’s “Ars Poetica,” which was published in 19 BC. Horace outlines his understanding of the nature and function of poetry in this poem and offers counsel to aspiring poets. “Ars Poetica” is a guide for writing effective poetry that places a strong emphasis on both technical proficiency and creative vision. In his defense of clarity, naturalness, and simplicity in poetry, Horace urges poets to be inventive and distinctive while also abiding by the rules of their particular genre.