Greg Hawkins is Executive Pastor of Willow Creek Community Church in South Barrington, Illinois. Like many ministry leaders, he often wondered quietly to himself, "How do we know if the things we're doing are really making a difference in helping people become more like Christ?" Working with an expert research team able to use a breakthrough tool to correlate behaviors and attitudes, they set about the task of "measuring hearts." Launched at Willow Creek Community Church, the Willow Creek Association decided to see if the dramatic insights the research provided would be equally beneficial to other churches. In the year following, REVEAL expanded to 150,000 congregants in 500 churches—and uncovered very specific things churches can do to better help catalyze spiritual growth in their people, things church leaders haven't been able to see, count, or measure in the past. Greg has shared the team's findings in two books co-written with Cally Parkinson: REVEAL: Where Are You? and the recently-released, Follow Me: What's Next for You? Knowing the importance of the REVEAL findings to all Christ-following churches, Greg now divides his time between the church and the ministry of the Willow Creek Association, talking about REVEAL findings with church leaders across the country.

What kind of spiritual dent can you make for the Kingdom if your congregation numbers less than 500? Less than 250? Come hear stories about spiritual warfare and victories from senior pastors of churches just like yours who ranked in REVEAL's spiritual growth "elite." Take away practical lessons from leaders on the front lines of the same kinds of spiritual battles you fight every day.

It's tough to be in the middle—to be a church that's too large to know everyone personally, but not large enough to have mega-resources. Come hear stories about spiritual warfare and victories from senior pastors of churches just like yours who ranked in REVEAL's spiritual growth "elite." Take away practical lessons from leaders on the front lines of the same kinds of spiritual battles you fight every day.

How did it get to be so complex? So hard to choose the right staff, to get everyone fired up and moving in the same direction; to know the best resource play for the spiritual health of your people. The biggest drawback to bigness is distance—distance from those you are called to lead. Come hear stories about spiritual warfare and victories from senior pastors of churches just like yours who ranked in REVEAL's spiritual growth "elite." Take away practical lessons from leaders on the front lines of the same kinds of spiritual battles you fight every day.

Cally Parkinson is managing director for REVEAL, a Willow Creek Association ministry that utilizes research tools and discoveries to help churches better understand spiritual growth in their congregations. She is also the co-author of REVEAL: Where Are You? and Follow Me: What's Next for You? She previously served as the director of communication services at Willow Creek Community Church, a role she took following a 25-year career at Allstate Insurance Company. At Allstate, Cally held a number of different director- and officer-level positions in strategic planning, research, finance, and communications. She has a B.A. in languages from DePauw University and a master's degree from the American Graduate School of International Management.

Eric Arnson is a contributing author of the book, REVEAL: Where Are You? He is the founder of ORIGINATE, a research and strategy consulting firm that develops and applies new approaches to understanding consumer-based loyalty. He also uses those consumer insights to help businesses create new products and services. Eric has more than 25 years of experience in the brand and consumer strategy fields, serving mainly Fortune 500 companies. Previously, he served as a partner at McKinsey & Company, a partner at the Cambridge Group, and also as founder of ENVISION—a pioneer in consumer-driven brand-strategy development. Eric began his career at Procter & Gamble before he moved on to Beecham Cosmetics. He is a graduate of the University of Michigan.

Margaret Stender is President/Chief Executive Officer of the Chicago Sky, the WNBA's newest expansion team. She brings to this role 21 years of extensive leadership experience in business development, operations, management, and marketing for high-profile brands and business units of Fortune 100 companies. In recent years, she led two $500m business units for PepsiCo as President of Juice Drinks (Tropicana shelf-stable) and President of Ready-to-Eat Cereals (including LIFE, Cap'n Crunch, Quaker Oats Squares brands). Prior to her accomplishments with PepsiCo and Quaker Oats Company, she was a Senior Vice President and General Manager with Rand McNally & Co., an international producer and marketer of maps and travel-related software and educational products. Margaret was also Vice President for Americast Cable Television during the launch of a competitive cable TV business in the Midwest.

Mark Mitten is the senior vice president of Marketing and Legacy for Chicago 2016. In this role he is responsible for developing the vision for how Chicago will strengthen the Olympic Movement from a sport, community, and environmental perspective. He also helps oversee the marketing and brand strategy of the Chicago bid, including creating and producing all the videos. Prior to joining Chicago 2016, he worked for Mark Burnett Productions and worked directly with clients such as P&G, Pepsi, and Pontiac, among others. Mark was a principal in the Chicago office of McKinsey & Company, where he co-led its North American marketing practice and developed business strategies with a focus on driving growth for CEOs of leading Fortune 100 consumer-package-goods, retail, technology, and media companies. Before joining McKinsey, in 1994 Mark cofounded Envision, a brand strategy consultancy with clients including Allstate, Discovery Channel, Fox, Gateway Computers, Gatorade, Kinko's, Microsoft, Nike, the United States Olympic Committee (USOC), and The Weather Channel.

John Ortberg is passionate about "spiritual formation," which is how people become more like Jesus. As pastor of Menlo Park Presbyterian Church in Menlo Park, California, his congregation was one of the first churches that helped formed the base sample for the REVEAL research. He has practical insights to share with other pastors who are getting their first results from the new REVEAL Spiritual Life Survey, and will offer wise counsel on the life-long pursuit of supporting others in becoming more Christ-centered. A recognized and sought-after teacher, John brings scripture alive with personal applications and warm humor. The author of If You Want to Walk on Water, You've Got to Get Out of the Boat and The Life You've Always Wanted: Spiritual Growth for Ordinary People, he has also contributed to many other books and periodicals.