Nicolas de Warrenis Professor of Philosophy and Jewish Studies at The Pennsylvania State University. He has published more than one hundred and fifty journal articles and book chapters and has authored or edited twelve books. His work has been translated into French, Spanish, Italian, Dutch, Japanese, Chinese, German, Romanian, Portuguese, and Polish. He is the editor of Levinas Studies, an area editor at the Stanford Encyclopedia of Philosophy, an executive editor of the Chinese Journal of Philosophy, and codirects the Contributions to Phenomenology book series. He has held visiting professorships in France, Italy, China, Hong Kong, and Japan, and a permanent faculty member of the Venice Summer School in Phenomenology at the University of Ca' Foscari. Ted Toadvineis Professor of Philosophy at The Pennsylvania State University. He specializes in environmental philosophy and contemporary European philosophy, especially the traditions of phenomenology, post-structuralism, and deconstruction. He has published more than fifty journal articles and book chapters and has authored, edited, or translated nine books, most recently The Memory of the World: Deep Time, Animality, and Eschatology (University of Minnesota Press, 2024).

His work has been translated into French, Italian, Korean, Spanish, and Turkish. He has served as editor of the journals Chiasmi International and Environmental Philosophy, and of the Series in Continental Thought at Ohio University Press. Currently, he codirects the Contributions to Phenomenology series with Springer and is coeditor of their online Encyclopedia of Phenomenology. He serves on the boards of the Center for Advanced Research in Phenomenology, the International Association for Environmental Philosophy, the International Merleau-Ponty Circle, and the Central European Institute of Philosophy. He is leading a project funded by the Mellon Foundation&s Humanities in Place Program on cultural preservation and environmental justice in the community of Africatown, Alabama. At Penn State, he is Nancy Tuana Director of the Rock Ethics Institute, which pursues a university-wide mission to promote engaged ethics research and ethical leadership.