Bruce Greyson, M.D. (born October 1946) is professor of psychiatry at the University of Virginia. He wrote Irreducible Mind (2007) and The Handbook of Near-Death Experiences (2009). Greyson also wrote the overview of near death experiences for the Encyclopædia Britannica and was the Editor-in-Chief of the Journal of Near-Death Studies from 1982 through 2007. Greyson has written many journal articles and has given media interviews.