Like a previous reviewer, it lacked additional information, especially with the wands. Which wood was used? And what beast hairs were used? We simply do not know. That info could be in a different book though. You know, because they like to rinse you of money.
I was also hoping for more info about the Beasts. But the 'character guide' title only applies to humans, with a side dish of the Obscurus. Beast discrimination (sarcasm).
However I LOVED the movie stills, and the additional art in the back of the book.