Pretty big sci-fi reader and have never read her (to my shame), can you recommend where to start?
Le Guinn explores social and political questions overlooked by those who came before, and has had a profound impact on those who came after. The recent Hugo winner Ancillary Justice was heavily inspired by Winter, for instance.
Anyhow, the Left Hand of Darkness and the Dispossessed are great books. I actually didn't get into the Wizard of Earthsea for some reason, but this was probably a problem with my teenage brain; I need to go back and give it another chance. I'm also very partial to her short stories, with The Birthday of the World containing several of my favourites.