We all know about the upcoming film but have you read the book yet? (I recommend doing this before seeing the film as they will probably leave so bits out unfortunately). This book written by J.K.Rowling (or Newt Scamander) is 1 of the 3 extra books to the Harry Potter world, in aid of the charity Comic Relief (just another reason to by the book).
The book is a required text book when you enter Hogwarts School of Witchcraft and Wizardry so if you have been enrolled then it is probably a good idea to take this with you (as long as you don't mind Harry's and Ron's doodles and games and , occasionally, Hermione's scolding them for vandalising a book and not paying attention). This book lists all the magical beasts, a description of them, and a danger rating, so ever wondered where a Quintapod lives? Ever wondered what a Puffskein eats? Or even why it best not to leave milk out for a Knarl? Well now all the confused muggles can finally know with Newt Scamanders Fantastic Beasts and Where to Find Them (now available in Flourish and Blott's bookstore, Diagon Alley, London and most muggle bookstores).