Westminster has a good selection of books on youth ministry for sale:
- Family-Based Youth Ministry: Reaching the Been-There, Done-That Generation
- Almost Christian: What the Faith of Our Teenagers is Telling the American Church
- No Guts, No Glory: How to Build a Youth Ministry That Lasts
- Critique of Modern Youth Ministry
- Sustainable Youth Ministry: Why Most Youth Ministry Doesn’t Last and What Your Church Can Do About It
- Get Outta My Face! How to Reach Angry Unmotivated Teens With Biblical Counsel
- Starting Right: Thinking Theologically About Youth Ministry
Don’t forget too that Westminster has a great clearance selection, including the Baker Exegetical Commentaries on the New Testament.