Leaves of GrassA collectible new Penguin Classics series offers beautiful, slim, clothbound editions of ten favourite poets. In 1855, Walt Whitman published his first collection of poetry, Leaves of Grass. The volume received great praise from leading Transcendentalist poet Ralph Waldo Emerson. This encouragement led to what would become a lifelong project, as Whitman expanded and rewrote the volume until his death in 1892. Whitman's innovative use of free verse and