David Kinnaman is the author of the bestselling books Good Faith, You Lost Me and unChristian. He is president of Barna Group, a leading research and communications company that works with churches, nonprofits, and businesses ranging from film studios to financial services. Since 1995, David has directed interviews with nearly one million individuals and overseen hundreds of U.S. and global research studies. He and his wife live in California with their three children.

Roxanne Stone is Editor in Chief at Barna Group and the general editor of the FRAMES series. She has more than a decade of experience in publishing, serving as an editor at Christianity Today, Group Publishing, Q Ideas and This Is Our City, and as the editorial director for RELEVANT magazine and its sister publications Reject Apathy and Neue. She has edited books, magazines, web sites and curriculum; and is the author of dozens of articles, including an award-winning cover story on the relief efforts in Haiti following the 2010 earthquake. In addition, Roxanne curated and cohosted the first annual Q Women event.

She speaks, trains and consults in the areas of faith and culture, vocation, Millennials, social justice and church leadership.

Roxanne is available for training, speaking or consulting on any of these topics.

Barna Group’s vice president of research, Brooke Hempell, has been a market research advisor for nearly 15 years, designing both qualitative and quantitative research to guide clients in new product development and positioning, brand portfolio strategy, communications planning, and sales and marketing effectiveness.

Prior to joining Barna in 2015, Brooke worked with Boston-based MaPS (Marketing and Planning Systems), HawkPartners, and London-based i-to-i research, a subsidiary of Publicis Groupe. She has served Fortune 100 clients in a range of industries, primarily pharmaceuticals, financial services, nonprofit, and retail, in the U.S. and globally.

Brooke earned her B.S. in Business Administration, Marketing, from Cornell University. She is active in church-planting and racial reconciliation ministries and lives in Atlanta, GA.

Maina resides in Atlanta, Georgia, with his wife, Tiffany, and daughter, Zyan. He is a graduate of Liberty University and New Orleans Theological Seminary and has served on staff at churches in Alabama, Georgia and Maryland. You can find Maina’s written work at mainaspeaks.com

Rev. Dr. Anthony (Tony) Cook is the vice president, Global Ministries for Lutheran Hour Ministries (LHM). He provides leadership and operational management of the direction, strategies, and initiatives for the global ministries division. Cook brings 22 years in ministry experience to LHM, including 17 years in curriculum design and development, distance curricula, educational technology, and leadership. His background includes serving as a parish pastor and consulting numerous Christian entities on curriculum design and development, distance learning, internet technologies, and sharing the Gospel through various forms of multimedia.

Cook served as Associate Professor of Practical Theology at Concordia Seminary, St. Louis, specializing in education, pastoral theology plus leadership, and postmodern studies, including courses on preaching to postmoderns, post-liberal theology, and emerging Christianity. He also served as Concordia Seminary’s Director of Curriculum Design and Development. Cook received his Ph. D. in Curriculum and Instruction from St. Louis University and an M.Div. from Concordia Seminary, St. Louis.