where is the author from?
Berkeley, California.
Ursula K. Le Guin
Le Guin was born in Berkeley, California, to author Theodora Kroeber and anthropologist Alfred Louis Kroeber. 
what is the theme of the left hand of darkness The Evidence is: The novel is set in the fictional Hainish universe as part of the "Hainish Cycle", a series of novels and short stories by Le Guin, which she introduced in the 1964 short story "The Dowry of the Angyar".
wiki:19658200
Ursula K. Le Guin [SEP] Introduction
Le Guin was born in Berkeley, California, to author Theodora Kroeber and anthropologist Alfred Louis Kroeber. Having earned a master's degree in French, Le Guin began doctoral studies but abandoned these after her marriage in 1953 to historian Charles Le Guin. She began writing full-time in the late 1950s and achieved major critical and commercial success with "A Wizard of Earthsea" (1968) and "The Left Hand of Darkness" (1969), which have been described by Harold Bloom as her masterpieces. For the latter volume, Le Guin won both the Hugo and Nebula awards for best novel, becoming the first woman to do so.