Obviously, all of the Harry Potter books are amazing for different reasons, but Prisoner of Azkaban is definitely the best.
Harry Potter and the Prisoner of Azkaban | inside the Shrieking Shack
Hey, I found this really awesome Etsy listing at http://www.etsy.com/listing/98246122/harry-potter-and-the-prisoner-of-azkaban
I personally identify with Ron all the time, but the tap-dancing spiders dream really hits home for me.
Harry Potter & The Prisoner of Azkaban by Florey, via Behance
Harry Potter and the Prisoner of Azkaban, Original Pencil Drawing Illustration
Gary OLDMAN (b. 1958)  Notable Films Part 3, Photo: as Sirius Black in 'Harry Potter and the Prisoner of Azkaban'
Harry Potter and the Prisoner of Azkaban Should've Been in Movie Hermione Ron funny Boggart
Harry Potter and The Prisoner of Azkaban - 2004 haha from the angle of the pic it looks like rons wearing a slytherin tie