Peter and Heather Larson do premarital counseling, speaking events, and marriage education together in a variety of settings. Peter is a licensed clinical psychologist and co-developed the customized version of the widely used PREPARE/ENRICH couples assessment tool. Heather is associate director of Marriage Alive. Married for nearly 20 years, the Larsons have three school-aged children and live in Boulder, Colorado.Coauthors David and Claudia Arp, founders of Marriage Alive, have written more than 30 books. Their 10 Great Dates seminar is popular across the U.S. and internationally. Frequently appearing in national media, the Arps have been married 50 years and live in Great Falls, Virginia. Learn more at www.marriagealive.com.