We use separate toilets and buy our shower gel from different shelves. It is completely natural for us to categorize people as women or men. But what actually distinguishes the genders? Would you be a different person if you had a different gender? From childhood to career choices, others influence what we do. By recognizing the underlying structures, one understands what shapes them into the person they are. And who they can be! A book about identity, as diverse as our bodies and personalities.