Set in LeGuin’s Hainish universe. The protagionist, Genly Ai, is a Terran male who is on a mission to get Gethen to rejoin Ekumen or the League of All Worlds. Gethen’s inhabitants are ambisexual- their sex and sexuality are latent (no sex drive) and gender-neural for 24 days. Gethen has no rape, war, possessiveness, or covetousness. Over the course of the book, Ai realizes that his mistrust of Estraven, the disgraced Gethen prime minister, is misplaced, maybe misogynist, because every time Ai doesn’t like him, he is presenting as female. Addresses feminist issues. Won the Hugo and Nebula awards for best novel, making LeGuin the first woman to win these awards. Widely regarded as the first feminist scifi. Represents new voice/possibility-> Ai only gains more morality and decency at the end of the novel, not power or triumph.