Mark DeVries (MDiv, Princeton Theological Seminary) is the founder of Ministry Architects, a consulting team that helps churches and ministry organizations build sustainable ministries for children, youth, young adults, and entire congregations. He served for twenty-eight years as associate pastor for youth and their families at First Presbyterian Church in Nashville, Tennessee. He has trained youth workers on five continents and has taught courses or been a guest lecturer at a number of colleges and seminaries.

DeVries is the author of Sustainable Youth Ministry, Sustainable Children's Ministry (with Annette Safstrom), and Family-Based Youth Ministry. He is also the coauthor of The Most Important Year in a Woman's Life/The Most Important Year in a Man's Life, and he has been a contributing writer for Josh McDowell's Youth Ministry Handbook, Starting Right, and Reaching a Generation for Christ. He and his wife, Susan, have four grown children.