I'm late to the HP caze. Half way through the first book and enjoying it very much. My daughter and husband have read 1-3, but our school librarian said we might hold up there until she's a tad older. She said maybe 4 would be okay for her. The kids have seen the first 2 movies and we've seen all 5. So I'm flying through the first book now so I can catch up and see what everyone's talking about!