Which J.K. Rowling book was written as a textbook by the fictional author Newt Scamander?

Fantastic Beasts and Where to Find Them was written as a fictional textbook by Newt Scamander.

In the Harry Potter universe, Newt Scamander is the credited author of Fantastic Beasts and Where to Find Them, a guide to magical creatures used by Hogwarts students. Rowling published a real version of the book in 2001, presenting it as Harry’s school copy with humorous notes attributed to Harry and Ron.

The companion book was created to support Comic Relief, with proceeds helping charitable projects. It is separate from Rowling’s main seven Harry Potter novels and from the later film series that uses Newt as its central character.

The book’s fictional textbook format explains why its contents are arranged as entries about creatures rather than as a conventional narrative. The real edition also includes an introduction attributed to Newt and gives readers a playful glimpse of the school materials mentioned in the novels.