With gravity that dwells more in each volume of this series, the Harry Potter phenomenon typically between the category of initiation novels, those with whom we grow and allow younger address topics Serious: responsibility, decision making, obedience or not to unjust laws. In the Order of the Phoenix, with the arrival of Dolores Umbridge in the school, students getting firsthand the limit there may be just between enforcing discipline and outgoing retaliation the established framework. That's the whole point of this episode, the larger of the series. Some, like the Weasley brothers see an opportunity to enter into a resistance leading to a beautiful mess. Others are looking for ways sometimes secret, secret training as protection against evil forces. Harry and his friends are facing the denial of the facts, intimidation, bad faith, passive or active collaboration of some students with disciplinary measures. They also face intense personal pain associated with death, disability-related attacks of the enemy., The fact that the school principal has doubts. The characters are more complex, less amazed. In this sense, the Order of the Phoenix is a very good game in the series. And, of course, the thickness of the volume does not affect the readability.