All I've read of Leguin are The Lathe of Heaven and the original Earthsea Trilogy (in the wrong order - books 1 and 3 in my early teens, book 2 much later). None of it really clicked. They were all very good books but somehow not congenial to this readerbrain, I came away each time with a vague sense of cold and depression.
If it's classic enough for the Hugo and Nebula folks XD
You tell me, though...