Which fictional school textbook is credited to Newt Scamander and associated with J.K. Rowling?

Fantastic Beasts and Where to Find Them is the fictional school textbook credited to Newt Scamander.

In the Harry Potter universe, the book is presented as a Hogwarts textbook about magical creatures. Rowling published a real companion volume under the same title in 2001, using the fictional author Newt Scamander as part of the joke and framing device. The book includes an introduction attributed to Albus Dumbledore and commentary from Harry Potter and Ron Weasley.

The title later became the basis for a 2016 film screenplay and a series of films set decades before Harry’s story. In those films, Newt Scamander becomes the central character, played by Eddie Redmayne. The screen version is therefore not simply a filmed edition of the short companion book.

Readers can distinguish the real 2001 charity companion book from the 2016 screenplay by publication context. Both use the same title and fictional author, but they are different works.