What is the name of the wizarding companion book J.K. Rowling wrote under the name Newt Scamander?

The wizarding companion book J.K. Rowling wrote under the name Newt Scamander is Fantastic Beasts and Where to Find Them.

The book is presented as a Hogwarts textbook about magical creatures. Its fictional author, Newt Scamander, is a magizoologist whose name later became central to the Fantastic Beasts film series. The original book was published in 2001 as a charity edition supporting Comic Relief.

It is distinct from Quidditch Through the Ages and The Tales of Beedle the Bard, which are the other major companion books associated with Rowling’s wizarding world. The later films expand the character and setting far beyond the short textbook-style volume, so the book and film franchise should not be treated as identical works.