Quidditch Through the Ages (real)

Quidditch Through the Ages is a book written by J. K. Rowling for the Comic Relief charity in 2001. Written under the pseudonym Kennilworthy Whisp, it is meant to be a copy of the in-universe book Quidditch Through the Ages. The premise is that the book has been released to the Muggle world to help raise money for needy causes. It features a foreword by Albus Dumbledore.