|"Is this all real? Or has this been happening inside my head?"
The subject of this article is a real-life person, company, product, or creative work that has been mentioned "in-universe" in a canon source. The Harry Potter Wiki is written from the perspective that all information presented in canon is true (e.g., Hogwarts really exists), and, as such, details contained in this article may differ from real world facts.
|A Collection of Above Three Hundred Receipts in Cookery, Physick, and Surgery|
Cookery and medicine
It was fourth year required reading at Hogwarts School of Witchcraft and Wizardry, and Harry Potter, Ronald Weasley and Hermione Granger studied it in the Great Hall in 1994, under Professor Severus Snape's supervision.
- Harry Potter and the Goblet of Fire (film) (First appearance)