David Kinnaman is the president and majority owner of Barna Group, a visionary research and resource company located in Ventura, California. David joined Barna Group in 1995 as an intern. Since joining George Barna’s team, David has designed and analyzed hundreds of market research projects for a variety of clients, including the American Bible Society, the Billy Graham Evangelistic Association, CARE, Columbia House, Compassion, Easter Seals, Focus on the Family, Habitat for Humanity, the Humane Society, NBC-Universal, The ONE Campaign, the Salvation Army, SONY, Walden Media, World Vision, Zondervan (Harper Collins) and many others. Kinnaman is the author of the best-selling book, unChristian (2007) and You Lost Me (2011), both of which explore the attitudes of 16- to 29-year-olds in relation to Christianity, church and culture. He frequently speaks publicly on topics of spiritual and cultural trends, teenagers and young adults, vocation, calling, and leadership.