Fantastic Beasts and Where to Find Them intended to be a reproduction of a textbook owned by Harry Potter and written by Newt Scamander the magizoologist, a fictional character in the Harry Potter series. In the series, the Magizoology is the study of magical creatures.
Albus Dumbledore, headmaster of Hogwarts, provides the prologue and explains the purpose of the special edition of this book (the charity Comic Relief). In the end, tells the reader, “(…) the amazing creatures that are described below are imaginary and can not hurt.” He repeated the motto of Hogwarts, “Draco dormiens nunquam titillandus” Latin for “Never would you tickle a sleeping dragon “.
As a Textbook in Harry Potter Series
Fantastic Beasts and Where to Find Them contains the history of Magizoology and describes 75 magical species found around the world. He says Scamander collected most of the information found in the book through observations made in years of travel and across five continents. He notes that the first edition was commissioned in 1918 by Mr. Augustus Worme of Obscurus Books. However, it was not published until 1927. It is now at its fifty-second edition.
In the Harry Potter universe, the book is a required textbook for first-year students of Hogwarts, being an approved textbook since its first publication. It is not clear why students need it in their first year because students do not have Care of Magical Creatures until their third year. However, it can be used as an encyclopedia of dark creatures studied in classes of Defense Against the Dark Arts. In his foreword to the book, Albus Dumbledore notes that it serves as an excellent reference to wizarding families in addition to their use in Hogwarts.
The book is supposedly scribbles and comments added by Harry, Ron and Hermione. The comments seem to be written around the time of the fourth book, Harry Potter and the Goblet of Fire. These doodles add some additional information for fans of the series, for example, the section that discusses the acromantula has a comment confirming Hogwarts is located in Escocia.
Integrated into the design, the cover of the book seems to have been torn by some kind of animal.