Duffy Robbins is professor of youth ministry at Eastern University in St. Davids, Pennsylvania, and a 30-year veteran of youth ministry. He speaks around the world to teenagers and people who love teenagers, and is author of several books, including Memory Makers, Everyday Object Lessons, This Way to Youth Ministry, Youth Ministry Nuts and Bolts (recently revised and updated), Enjoy the Silence, Speaking to Teenagers (co-authored with Doug Fields) and his newest book, Building a Youth Ministry That Builds Disciples.