The books get better and better as the kids grow up.
The first one is really a kid's book - by the time you get to Half Blood Prince, there are some very intricate themes and subplots, along with great character development.

My sister resisted reading the books or seeing the movies for years, then about a week ago she read a whole boxed set and was down here to borrow the other two and the movies. :)

RE: Harry Potter and the Order of the Phoenix