https://en.wikipedia.org/wiki/William_Franke_(philosopher)
On What Cannot Be Said: Apophatic Discourses in Philosophy, Religion, Literature, and the Arts. Notre Dame, Indiana: University of Notre Dame Press, 2007. Edited with Theoretical and Critical Essays by William Franke. Vol. I: Classic Formulations; Vol. II: Modern and Contemporary Transformations.
A Philosophy of the Unsayable. University of Notre Dame Press, 2014 (accessible via scribd)
