The Left Hand of Darkness

This science fiction novel is the story of Winter, an Earth-like planet with two major differences. Conditions are semi-arctic even at the warmest time of the y... » 

This science fiction novel is the story of Winter, an Earth-like planet with two major differences. Conditions are semi-arctic even at the warmest time of the year, and the inhabitants are all of the same sex. The book has won the Hugo and Nebula Awards. «