Valerie Eliot edited T. S. Eliot: The Waste Land, a Facsimile & Transcript of the Original Drafts (1971) and The Letters of T. S. Eliot, Volume 1: 1898-1922 (1988), Volume 2: 1923-1925 (2009), Volume 3: 1926-1927 (2011), Volume 4: 1928-1929 (2013), Volume 5: 1930-1931 (2014) and Volume 6: 1932-1933 (2016). Valerie Eliot died in 2012. John Haffenden is Emeritus Professor of English Literature at the University of Sheffield, Senior Research Fellow of the Institute of English Studies, University of London, and a Fellow of the British Academy. His publications include a biography of the American poet John Berryman; editions of the works of William Empson including the Complete Poems (2000); and an award-winning two-volume biography of Empson (2005, 2006). He was General Editor of The Letters of T. S. Eliot, volumes 1, 2 (2009), 3 (2011), 4 (2013), 5 (2014) and 6 (2016).