This document discusses Matthew Arnold's study of poetry and views on criticism. It provides biographical details of Arnold and outlines his theory of poetry, which held that poetry should be a criticism of life. Arnold developed the concept of "high seriousness" and used a "touchstone" method of comparing works to classics. He offered historical, personal, and real estimates of poets like Chaucer, Dryden, Pope, Gray, Burns, and Shakespeare. However, some critics found flaws in Arnold's moralizing approach and lack of disinterestedness towards certain poets like Shelley.