Which charity book did J.K. Rowling publish alongside Quidditch Through the Ages in 2001?

Fantastic Beasts and Where to Find Them was published alongside Quidditch Through the Ages as a charity book in 2001.

Both slim companion volumes were presented as books from the Hogwarts library and were credited to fictional wizarding authors. Fantastic Beasts was attributed to Newt Scamander, while Quidditch Through the Ages was attributed to Kennilworthy Whisp. Proceeds from the original publications supported Comic Relief.

The Fantastic Beasts book is framed as a textbook and catalogue of magical creatures. Its mock annotations by Harry, Ron, and Hermione give readers a small extra connection to the main novels. The original edition was deliberately designed as an in-world object rather than as another Harry Potter adventure.

The title later became associated with the film series beginning in 2016. That film is a prequel-style story centred on Newt Scamander, whereas the 2001 book is a fictional reference work. The shared title explains why the two formats are often confused.