Quidditch Through the Ages by J. K. Rowling

It's a comprehensive guide to everything about Quidditch.  This is the other book written by J. K. Rowling to go along with the Harry Potter books.  Most of the book is about the history and origins of the game.  For example, Quidditch got its name because it originated in a place called Queerditch, and the golden snitch used to be a bird called the snidget.

On the back of the book, it says that some Quidditch fans look in the book every day.  The book is a little over fifty pages.  It seems like within a couple of months, these fans would be able to recite the entire thing word for word.

When I bought this one and Fantastic Beasts and Where to Find Them, I thought that the latter would be far more interesting, but Quidditch Through the Ages was fascinating.