AudioFile Earphones Award winner Eric Michael Summerer is a voice actor and producer who has narrated numerous audiobooks as well as countless instructional recordings and video games. He earned an Audie Award nomination for Childhood's End by Arthur C. Clarke.
Eva Wilhelm is a classically trained stage actor, with two decades of theater experience. The narrator of over one hundred audiobooks, she teaches everything from "Acting for Business Professionals" to "Voice for the Microphone" for The Shakespeare Theatre, Howard University, and other educational institutions.
William Irwin is Herve A. LeBlanc Distinguished Service Professor and Chair of Philosophy at King's College, Pennsylvania. Irwin's books include Little Siddhartha and God Is a Question, Not an Answer.
James B. South is professor of philosophy and associate dean for faculty in the Klingler College of Arts and Sciences at Marquette University.
Kimberly S. Engels is assistant professor of philosophy at Molloy College in Rockville Centre, New York, where she teaches courses in ethics, biomedical ethics, and contemporary philosophy.