Insecure by John Perritt. Insecurity is painful for many, but there is a greater fear to drown out this lesser one. Scripture tells us that the fear of the Lord is the beginning of wisdom. It is in this greater fear, that we learn how to grow, live, and, possibly defeat, our insecurity.
13 Ways to Ruin Your Life by Jarrod Jones. This is a great book on purity for teenage guys that walks readers through Proverbs 7. A good resource for discussions.