His book Literature and the Law of Nations, 1580-1680 (Oxford University Press) was awarded the 2016 Roland H. Bainton prize for Literature. Warren is co-founder (with Daniel Shore) of the digital humanities project Six Degrees of Francis Bacon, and his work has appeared in English Literary Renaissance; The Seventeenth Century; Digital Humanities Quarterly; Humanity; Law, Culture, and the Humanities; and the European Journal of International Law. He directs the Pittsburgh Consortium for Medieval and Renaissance Studies, and he has held visiting fellowships at Keble College, Oxford, the University of Chicago, and NUI Galway’s Moore Institute.