Led by the American poet Ezra Pound, Imagist Movement is a poetic movement that flourished in the U.S. and England in 1909-1917. It advances modernism in arts which centered on reforming the medium of poetry as opposed to Romanticism, especially Tennyson's wordiness and high-flown language in poetry. Pound endorsed three main principles as guidelines for Imagism, including direct treatment of poetic subjects, elimination of merely ornamental or superfluous words and rhythmical composition in the sequence of the musical phrase rather than in a sequence of a metronome.