The Left Hand Of Darkness
by Ursula K. Le Guin
Winter is an Earth-like planet with two major differences: conditions are semi artic even at the warmest time of the year, and the inhabitants are all of the same sex. Tucked away in a remote corner of the universe, they have no knowledge of space travel or of life beyond their own world. And when a strange envoy from space brings news of a vast coalition of planets which they are invi...
