Frank Bidart and David Gewanter have compiled the definitive edition of Robert Lowell's work, from his first, impossible-to-find collection, "Land of Unlikeness"; to the early triumph of "Lord Weary's Castle," winner of the 1946 Pulitzer Prize; to the brilliant willfulness of his versions of poems by Sappho, Baudelaire, Rilke, Montale, and other masters in "Imitations"; to the late spontaneity of "The Dolphin," winner of another Pulitzer Prize; to his last, most searching book, "Day by Day." This volume also includes poems and translations never previously collected, and a selection of drafts that demonstrate the poet's constant drive to reimagine his work. "Collected Poems "at last offers readers the opportunity to take in, in its entirety, one of the great careers in twentieth-century poetry.