In 1855, an unknown but wildly ambitious young poet self-published the first edition of Leaves of Grass, consisting of twelve untitled poems and an explanatory preface. Walt Whitman spent the rest of his life engaged in expanding and revising this work, through six editions and nearly four decades, establishing Leaves of Grass as one of the central works in the history of world poetry. This edition reproduces the magnificent "death-bed edition, " published in 1892 a mere two months before Whitman's death at the age of seventy-two.