Just another GR refugee. Other than that, I had a stroke in 2004, and read almost anything I can get my hands on, though I have a particular weakness for history, mystery, and historical fiction.
It's hard to beat Harry Potter for a school setting, but here for honorable mention I include R.F. Delderfield's To Serve Them All My Days (set at a British boarding school from 1919 to 1940 - from the point of view of one of the teachers), Jean Webster's Daddy Long-Legs, and L.M. Montgomery's Anne of the Island, in which Anne Shirley goes away to college, which is probably my favorite in that entire series.