The best book club books don't need to be liked by everyone — they need to generate conversation. These 20 novels reliably produce disagreement, insight, and the kind of discussion that continues after the wine is finished.
The worst book club book is one everyone agrees about. The best generates disagreement about things that matter: a character's choice, an ending's meaning, a moral question the novel refuses to resolve. The books below all have this quality.
They're organized by discussion type — books that generate debate about characters, books that raise social questions, books that are formally unusual enough to produce interesting conversations about how they work. Length and intensity ratings help you match to your group's preferences.