I first read these books when I was actually in the target age group, but I have re-read them countless times since then, they are timeless and ageless. "A Wizard of Earthsea", with its superb world-building and archetypal story of shadow and light. "The Tombs of Atuan", with its marvelous sexual imagery and tentative exploration of female themes. And "The Farthest Shore", where Ged takes on life and the afterlife.

Ursula le Guin was like the leader of my tribe. I regret not seeing her in person, she was a regular a SF conventions, but she left behind a superb body of work which I am still discovering.