Author and psychotherapist Richard Carlson was born on May 16, 1961 and grew up in Piedmont, California. He received his undergraduate degree from Pepperdine University, his Ph.D. in psychology from Sierra University, and an honorary law degree from Pepperdine University. Before becoming a full-time author, he was a psychotherapist in private practice. His wrote 30 books that deal with psychological and spiritual health, including the Don't Sweat the Small Stuff series. He was a supporter of the National Center for Family Literacy. He died of cardiac arrest on December 13, 2006.
Author of the best selling Men Are From Mars, Women Are From Venus (1992) and its sequels, John Gray is a frequent guest on popular talk and news programs on both radio and television and teaches seminars on relationships and communication. His books have been translated into 38 languages. Gray received his Ph.D. in psychology from Columbia Pacific University. He lived as a monk for nine years, receiving his bachelors and masters degrees in Creative Intelligence from Maharishi European Research University. Gray lives in Northern California with his wife, Bonnie, and has three children.