A Wizard of Earthsea is a masterpiece in worldbuilding, a miracle of economical storytelling, an endlessly quotable novel, LeGuin's lyrical prose style at its most beautiful. The "saga" mode of writing makes this feel like a book out of a real Earthsea, constantly hinting at a fully existing history and cultural corpus. I also love the writings around it, reading the collected novels edition I'm surrounded by introductions, essays and afterwords from LeGuin herself that make me appreciate the text even more and show what a great human being she always was.