Personal finance writing usually fails in one of two directions: it either treats money as a maths problem or it treats it as a moral one. Morgan Housel works somewhere more useful, on the money and finance shelf but preoccupied throughout with behaviour, temperament and the stories people tell themselves about what they have and what they want.
The Psychology of Money arrives with tens of thousands of listener verdicts attached and a score that has held steady across all of them. That kind of volume is its own form of evidence. Money attracts fierce disagreement, and a rating that survives at that scale has generally earned it.
The Art of Spending Money extends the same interest into the other half of the equation, filed under business and careers alongside money and finance. Where the earlier work is concerned with how people think about accumulating, the title alone points at the harder and much less discussed question of what any of it is for.