What is the name of J.K. Rowling’s 2001 charity companion book about wizarding sports?

J.K. Rowling’s 2001 charity companion book about wizarding sports is Quidditch Through the Ages.

Quidditch Through the Ages was published under the fictional author name Kennilworthy Whisp. It is presented as a history of Quidditch, covering the game’s development, equipment, rules, teams, and international traditions within the wizarding world.

The book was issued alongside Fantastic Beasts and Where to Find Them as a charity publication. Proceeds from the original editions benefited Comic Relief, a British charity that uses comedy and entertainment to raise money for social causes.

The book is framed as a Hogwarts library volume, and Harry, Ron, and Hermione are associated with its fictional reading context. It should not be confused with the later real-world rulebooks or with the 2016 screenplay titled Fantastic Beasts and Where to Find Them.