Formally, Os owned an advertising agency but is now an internationally recognized speaker on the subject of faith at work. He is the author of 14 books and a daily email devotional called Today God Is First (TGIF) which has over a quarter of a million daily subscribers worldwide. Os’ latest book is Overcoming Hindrances to Fulfill Your Destiny and Change Agent. He developed and teaches the Change Agent Intensive weekend training sessions which is now available as a DVD Video Course. Os also gives leadership to a new initiative called The Change Agent Network. Os has been featured on CNBC, NBC, LA Times, New York Times, and many other national media as a spokesperson on faith at work. He is a regular contributor to The Christian Post, Charisma News, and Crosswalk.