I don’t quite see why this is part of the Oxford Landmark Science range. To me, it’s a relatively low level analysis of the factors that go into personality, much of which I’ve read elsewhere in other popular science books which aren’t so tightly focused. It’s not that it’s a bad book, or uninteresting; there are some things I didn’t know, and it’s interesting to see how Nettle explores the two sides to each of the main personality factors identified — the downside to being extroverted, for example, and the downside to ‘openness to experience’.
Still, none of it is revelatory, and he doesn’t spare much time for the criticisms of the whole idea of studying people’s personalities as if they’re a real thing you can test and measure. His conclusion is basically that of course you can, because you can obtain consistent data that falls into particular trends. I don’t think I disagree, but I’m sure there are more criticisms.
It’s an easy enough read, surprisingly light even for pop-sci.