The Dispossessed, Ursula K. Le Guin
The Dispossessed is all world-building. It’s about an anarchist society on a near-desert planet – think Utopia but without the kyriarchy. It’s as much a thought experiment as (e.g.) Asimov’s short stories are, but Le Guin’s writing and her characterisation are lovelier than his. The last line is perfect.
The English Student 