What is the name of the fictional wizarding textbook written by J.K. Rowling for Comic Relief?

The fictional wizarding textbook written by J.K. Rowling for Comic Relief is Fantastic Beasts and Where to Find Them.

Published in 2001, the book is presented as a Hogwarts textbook by Newt Scamander. It describes magical creatures and includes Harry Potter, Ron Weasley and Hermione Granger as humorous former owners who have annotated the copy.

Rowling wrote the book as a charity companion to Quidditch Through the Ages. Proceeds supported Comic Relief, a British charity that raises money for people affected by poverty and social injustice.

The title later became the basis for a separate film series. The films are not adaptations of a conventional full-length narrative in the original book; instead, they expand the fictional textbook’s author and wizarding world into screen stories.