Jason Walford Davies is Professor of Welsh and Welsh Writing in English, and Co-Director of the R.S. Thomas Research Centre, at Bangor University, where he has taught since 1993. He has published widely in the field of twentieth-century Welsh poetry, and is the author of numerous studies of the work of Waldo Williams (1904–71). He is currently preparing a monograph on Williams, together with an edition of the poet’s letters. His publications on R.S. Thomas include Gororau’r Iaith (‘The Marches of Language’) – a study of Thomas’s engagement with Welsh-language literature – and the following editions: R.S. Thomas: Autobiographies, ABC Neb, and, with Tony Brown, Uncollected Poems. In 2016 he edited, again with Tony Brown, a previously unpublished collection of ekphrastic poems by Thomas, Too Brave to Dream: Encounters with Modern Art. He won the Crown at the National Eisteddfod in 2004, and his collection of poems, Meniscus, will appear in 2019.