There are even sections on dental hygiene and using sun screen. There are sections on braces, acne, and underarms, as well as nutrition, sleep, fitness, and hair care. It's not just about the breasts and bras and period part of puberty. By presenting the 'things that will change about you' topics alongside the 'things that you probably already know about your body' topics, the former topics come across as perfectly normal and nothing to be ashamed or scared about.