LOVE Le Guin. LHOD is one of my all time favorites. If you liked LHOD you will want to read more of her.
I also loved the Earthsea series, more than Harry Potter. (well, truth be told, I only "like" HP - I think there are so so so many children/teen/adult fantasy series that are better.)
“You want weapons? We’re in a library! Books! The best weapons in the world!” — The Doctor, S2E2