For some reason, A Swiftly Tilting Planet was my favorite book in the Time Quartet as a kid--yes, over A Wrinkle in Time and A Wind in the Door, although I loved the covers of all my copies--but A Ring of Endless Light was probably my favorite overall. I remember reading it one bright summer, a summer that "Red Red Wine" was on the radio all the time (although really, that could be many different summers), and I always associate the two. If I'm reading the book, I hear the song; if I hear the song, I think of the book, and that light, white afternoon I finished it in my little upstairs room with the roof shaped like a barn's.
Just something to leave you with, from that news link:
"In my dreams, I never have an age," she said. "I never write for any age group in mind. When people do, they tend to be tolerant and condescending and they don't write as well as they can write. When you underestimate your audience, you're cutting yourself off from your best work."It's probably not the most profound thing a very profound writer ever said, but I believe it.