This is "Fantastic Beasts And Where To Find Them," a textbook that exists in the wizarding world of Harry Potter. It was released physically to our muggle world before all seven of J.K. Rowling's famous novels were even published. More importantly, it's been known that this is becoming a screenplay for a soon to be trilogy!
The goddess herself Ms.Rowling is the obvious trusted screenwriter for this project. The story will take place 70 years before Harry receives his Hogwarts letter. However, it's salient to mention that this is not a prequel nor sequel to the Harry Potter franchise, it simply is inspired by and branches off of the world introduced by the wizarding world. We'll follow Newt Scamander, the author of this beast book, as he is among fellow witches and wizards in a New York City underground magic community. Supposedly, three films are to come from this, below is the teaser that's been released:
Apparently, it was Warner Bros who suggested the idea in the first place. For that, I couldn't thank them more. I crave the expansion of this fictional magical world. Personally, I'm excited for the time period these films will be taking place in. The protagonist, Newt, was theoretically born in 1897. I'm interested to see Rowling write for/around this period. Assumedly, it'll be wonderfully executed. But you never know, right?
Another aspect my fingers are crossed for to be covered is Newts name appearing on the Mauraders Map in the 3rd film, Harry Potter and The Prisoner of Azkaban. (Anyone else notice that?) I can safely assume it has something to do with Hagrid and his hippogriff. Perhaps Dumbledore will make an appearance within the trilogy. Perhaps hints at familiar aspects of this world will pop up a number of times. I'm not sure what to expect, but riddle me stoked.
David Yates, a Potter alum, has confirmed to direct the first installment which is expected to be released November 18th, 2016. The rest will follow in 2018 and 2020. Buckle your seat belts folks, we're about to be hit with some history of this wizarding world that hasn't even been consumed by Hermione Granger herself.