[j. d. worthington]

Actually, there are 6 Earthsea books at this point, including Tales from Earthsea.

LeGuin has a lot of anthropological interest in her work -- her father was Alfred L. Kroeber, the anthropologist, and her mother was Theodora Kroeber, a writer, so she combined the two and brought her own perspectives to these as well.

She's certainly not limited to YA or children's books -- those are a very minor part of her output, in fact. And yes, I'd highly recommend quite a few of her books; they're not quite the fast-paced story sort of thing, but they are rich in texture and thought, and beautifully written....

EDIT: I hadn't looked at the wiki page on her before posting, so some of the information above is rather redundant....