Mark Gregston is the founder and executive director of Heartlight Ministries, a residential counseling facility for adolescents in crisis. He is also a popular radio host and speaker and leads parenting seminars across the country. Mark’s latest book is Leaving a Legacy of Hope: Giving Your Grandchildren What No One Else Can (Certa Publishing). He and his wife, Jan, have served families and counseled youth for more than 40 years. They have two grown children and four grandchildren.