What was the name of J.K. Rowling’s charity companion book published in 2001 about magical creatures?

Fantastic Beasts and Where to Find Them was J.K. Rowling’s 2001 charity companion book about magical creatures. It was presented as a Hogwarts textbook written by the fictional magizoologist Newt Scamander.

The book was published to raise money for Comic Relief. Its design imitated a school library copy, including handwritten notes attributed to Harry Potter and Ron Weasley. Those fictional annotations gave the short reference work a playful connection to the novels.

The companion volume is distinct from the 2016 film of the same name. Rowling wrote the film screenplay, but the earlier book is a brief fictional catalogue rather than a narrative screenplay or conventional novel.

Its subject matter includes creatures such as the Acromantula, Basilisk and Niffler. The publication helped establish Newt Scamander as a named figure before he became the protagonist of the later film series.