The world is run by teen girls: parents of teen girls, teachers of teen girls, boys trying to date teen girls, feminists who want to empower teen girls, companies trying to sell things to teen girls, and people who have had it "up to here" with teen girls. Chances are if you're reading this, there is a young woman in your life for whom you desire the very best, and <i>10 Things for Teen Girls</i> can help with that.