Joanne once said that she almost included a Weasley cousin who was in Slytherin. (Thank Merlin!)
In the Spanish translation of the HP books, Neville's toad, Trevor was translated into a turtle instead of a toad.
Dumbledore is an early modern English word for "bumblebee" (Imagine someone saying "Professor Bumblebee!")
A patronus is a physical presentation of one's soul. Since James' patronus is a stag and Lily's patronus is a doe, they are literal soulmates.
The actress who played Moaning Myrtle was 37 years old at the time "Harry Potter and the Chamber of Secrets" was filmed. She is the oldest actress to ever portray a Hogwarts student.
Joanne's publisher suggested she use initials rather than her real name, "Joanne Rowling," in order to appeal to male readers. She chose J.K., borrowing the "K" from her grandmother's name, Kathleen. However, neither "Kathleen" nor "K" is part of her legal name.
The most O.W.Ls a with or wizard can earn is 12.
Rowling once said that if Voldemort saw a Boggart it would turn into his own corpse, since death was his biggest fear.
To keep Deathly Hallows from leaking early, Bloomsbury gave it codenames. ( Who would want to read Edinburgh Potmakers or The Life and Times of Clara Rose Lovett: An Epic Novel Covering many Generations.)
The name Harry Potter was mentioned 18,956 times in the series!
Yay, the second chap have been made! :D
