Harry Potter and the Prisoner of Azkaban

So far this is my favorite book in the series. I thought it did a good job in transitioning the story to a more mature one, handling topics that start resembling more the problems that a young man encounters rather than a kid.

Sirius Black and professor Lupin were great characters that in my opinion jumped the ranks quickly to become some of the best in the series.

The writing was also an improvement in my opinion. Although there were times where the pace was extremly slow.

Moving forward I expect more of the same as Harry comes of age.