While bodily changes are the most obvious signs that a kid is growing up, they're not always the first (or most stressful) signs. Why does it feel so weird to cry now? How can you tell if someone is really your friend? Is it okay to have a crush on someone who's the same sex as you? These kinds of questions (and answers) are what separates Growing Up, Inside and Out from other books — it tackles how boys' and girls' emotions change during puberty rather than just what happens to body parts (although that's in here, too).