Books or DVD’s about sex, dating, abstinence, pornography, keeping a pure mind, modesty, are all topics that are talked about endlessly in American youth groups. That doesn’t mean that parents shouldn’t broach the subject, to make sure their children really do understand what God has told Christians to do, and the reasons for such rules. If the teens don’t understand, or have been brainwashed by our culture, they are at risk, and parents can help. What parents think, and teach, still matters to the teens, even if they won’t admit it.
There many books on other topics that might help your teen as well, about anger, depression, eating disorders, etc.