I read and reviewed each of the volumes collected here separately, so this is basically just for my own records. The rating for the collection is the average of the ratings given to each individual book: both Philosopher's Stone and Prisoner of Azkaban got five stars from me. The former is just a really fun introduction to the series, and the latter is the best of the lot, bar none. It's complex and entertaining and does it all without the bloat that dropped like a text-filled hippo on every succeeding volume. For those of you who would never have bothered with arithmancy (shame on you, whoever you are), that means Chamber of Secrets got three stars. I mean I like it, but it never caught my attention the way the other two did - primarily, I think, because Hermione's out of action for a lot of it and I just don't care about Harry or Ron a tenth as much as I do her.