William Butler Yeats is generally considered to be Ireland's greatest poet, living or dead, and one of the most important literary figures of the twentieth century. He was awarded the Nobel Prize in Literature in 1923. George Bornstein has written five critical books on nineteenth- and twentieth-century literature. A longtime student of material textuality, he has produced several major editions of modernist works, including two volumes on Yeats's early poetry for the Cornell Yeats Series and the collection Under the Moon: Unpublished Early Poetry by W. B. Yeats. He has held fellowships from the American Council of Learned Societies, the National Endowment for the Humanities, and the Guggenheim Foundation, and serves as current president of the Society for Textual Scholarship. He is currently C. A. Patrides Professor of Literature at the University of Michigan, Ann Arbor.