Os Hillman owned and operated an ad agency for 17 years. During this time he served clients such as American Express, Steinway Pianos, Thomas Nelson Publishers and many non-profit organizations. He has spoken at Harvard University and was a visiting professor at Regent University for a season. Today Os is president of Marketplace Leaders and Aslan Group Publishing, and is involved in several entrepreneur ventures related to publishing and internet marketing. He is an author of 18 books, speaker, consultant and recognized authority in the role that faith and ethics play in the marketplace. Os is married to Pamela and has one married daughter, Charis. He and his wife live in Cumming, Georgia a suburb of Atlanta.