Peter L. Berger (1929-2017) was University Professor of Sociology, Emeritus, at Boston University and the founder and Senior Research Fellow of the Institute on Culture, Religion, and World Affairs.
Sociologist Thomas Luckmann (1927-2016) taught at the University of Konstanz in Germany, and Harvard, Yale, and Stanford Universities. His books include The Structures of the Life-World (coauthored with Alfred Schutz) and The Invisible Religion: The Problem of Religion in Modern Society.
David Colacci has been an actor and a director for over thirty years, and has worked as a narrator for over fifteen years. He has won AudioFile Earphones Awards, earned Audie nominations, and been included in Best of the Year lists by such publications as Publishers Weekly, AudioFile magazine, and Library Journal.