Two children with identical biology, raised apart, still drift into different selves. Two children with entirely different biology, raised side by side, drift the same way. That contradiction is where the book begins, and it is also where the trouble starts for anyone who studies children.
The book walks its reader through the whole arc of the work, from the first stubborn question to the final, careful decision about what to tell others and how. And through it run a few steady concerns, which together amount to a quiet philosophy of how one ought to study the young.
The first is this: a child is not a small adult awaiting completion. A child is a being in motion, with a character of its own, a way of feeling and reasoning and learning that belongs to it and to no one else. The researcher must know something of how children feel, how they think, how they learn, and how their bodies grow. Without that knowledge, even the most tender of studies can misread what a child is saying, and mistake a child’s silence for consent.
The second is that children’s own views ought to shape the research from the beginning, not be gathered like rainwater at the end and poured into a report. Their voices are the ground on which the inquiry should stand.
The third is context. A finding about a child means very little until it is set down within the family that raised her, the school that tested her, and the culture that taught her what a childhood is supposed to look like. Take the child out of that world and the finding goes thin, like a photograph of a river that tells you nothing of its current.