Three shelves claim Heirs and Graces at once: classics and heritage, money and finance, politics and society. That combination is the clearest available statement of what Eleanor Doughty is writing about, because inheritance has never been only one of those things.
The title takes a familiar phrase and sharpens it. Heirs implies succession, graces implies manners, and the book sits at the junction: land, lineage, money, and the quiet arrangements that keep all three where they are.