William S. Allen (PhD, University at Warwick) is an independent researcher and a librarian at the University of Southampton, UK. He is the author of Ellipsis: Of Poetry and the Experience of Language after Heidegger, Hölderlin, and Blanchot (2007), Aesthetics of Negativity: Blanchot, Adorno, and Autonomy (2016), and Without End: Sade's Critique of Reason (Bloomsbury, 2017).