The book considered one of the best in series. After a bit darker atmosphere in second part, Harry Potter and the Prisoner of Azkaban is a nice change. Despite the inevitable difficulties, Harry will achieve many triumphs, and the necessity of facing the challenges will lead him to master a few magical secrets that will play an important role in following parts.
This is one of my favourite Harry Potter books. From the beginning, I really liked it. In this book, I had an impression the story enters another, wider dimension, it's not only longer, but more complex. I return to it very often.
I like whole "Harry Potter" series, but since "The Prisoner of Azkaban" I'm starting to like them more and more. The previous two parts hadn't such an atmosphere, that's beginning already in this book. "The Prisoner of Azkaban" introduces one of my favourite characters - Sirius Black, who turns out to be Harry's godfather. I like returning to this book from time to time, because each time one can go through described adventures with the same passion.
I find this the best novel from Harry Potter series. Most magical and most interesting (of course in my opinion :-))