The essay contains a description of "Harry Potter's" school books: Quidditch Through the Ages and Fantastic Beasts & Where to Find Them. There's also a letter to the author of the books.

Quidditch Through the Ages The book is about Harry Potter's favorite sport - Quidditch. In the first book of the Harry Potter series, Professor Snape confiscated this library book from Harry. Rowling wrote the book as though it were the same book Harry Potter took from the library (Harry's name is written in the borrowers list on the inside of the first page). It tells about the evolution of Quidditch, the evolution of the flying …

…teams today. He likes the "Chudley Cannons". Ron wanted to write some notes about them in the book, but our friend Hermione stopped him at the last second. She warned him that the book might be protected with an anti-sabotage spell, because the copy they read belonged to Hogwarts' library. Where did you read and learn about Quidditch? I would like to read more about the subject. Hope to hear from you soon, Harry Potter