Her first name is Joanne.
Rowling's mother Anne died after a ten year struggle with multiple sclerosis.
After moving to Porto, Portugal, to teach English as a foreign language, she taught at night and began writing in the day while listening to Tchaikovsky's Violin Concerto.
Rowling has said that she based the character of Hermione Granger on herself when she was eleven.
She has published several books under the pen name Robert Galbraith, including The Cuckoo's Calling (2013), The Silkworm (2014), and Career of Evil (2015).
According to a Scholastic interview, Rowling's favorite sound is her husband snoring (along with the sound of the sea). Her least favorite sound is her husband snoring when she's trying to sleep.
The "K" stands for "Kathleen" which was the first name of her grandmother.
In 1982, Rowling took the entrance exams for Oxford University but was not accepted and read for a B.A. in French and Classics at the University of Exeter.
Rowling's own struggles with depression inspired the characters known as Dementors, soul-sucking creatures introduced in Harry Potter and the Prisoner of Azkaban.
According to a Scholastic interview, her favorite color is pink.