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Bill Easum has served for the past 25 years as a consultant to congregations and denominations through his firm, 21st Century Strategies, Inc. He is the author or coauthor of more than twenty books and has personally worked to grow more than 700 congregations.
Bill Tenny-Brittian is a partner in 21st Century Strategies, Inc., and is the managing editor and publisher of Net Results, North America's most experienced church growth and evangelism magazine. He is the author or coauthor of seven books.