John M. Gottman, PhD, is a New York Times bestselling author and a professor emeritus of psychology at the University of Washington in Seattle. His many books include The Seven Principles for Making Marriage Work and The Relationship Cure.
Educated at Juilliard, Paul Costanzo brings the sensitivity and nuance of a classical music background to his twenty-five-plus years of voice acting, and AudioFile magazine has called his narration "superb."