Lucy Dallas reports on theories, developments and disputes in the world of science fiction; Lawrence Douglas adds crucial historical context – stretching back to the Middle Ages, in fact – to the current US presidential impeachment; the poet Hannah Sullivan emerges from Princeton University Library with fresh insight into T. S. Eliot's love letters   The Carrier Bag Theory of Fiction by Ursula Le GuinThe Expanse, Volumes 1–8, by James S. A. Corey
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