Harry Potter: Quidditch im Wandel der Zeiten

Quidditch Through the Ages is a 2001 book written by British author J. K. Rowling using the pseudonym of Kennilworthy Whisp about Quidditch in the Harry Potter universe. It purports to be the Hogwarts library's copy of the non-fiction book of the same name mentioned in several novels of the Harry Potter series. The book benefits the BBC affiliated charity Comic Relief. Over 80% of the cover price of each book sold goes directly to poor children in various places around the world.