The Left Hand Of Darkness by Ursula K. Le Guin

The novel is a groundbreaking work of science fiction that explores themes of gender, politics, and identity. Set on a planet called Gethen, where the inhabitants are ambisexual, shifting between male and female, the story follows an envoy from Earth who struggles to understand this alien society. As he navigates the complex political landscape of Gethen, he must also grapple with his own preconceptions about gender and sexuality. The book is a profound exploration of difference, otherness, and what it means to be human.

The 516th greatest book of all time