Joanne Rowling, best known as J.K. Rowling, was born on July 31, 1965, in Yate, England. She adopted her pen name, J.K., incorporating her grandmother's name, Kathleen, for the latter initial (Rowling does not have a middle name).

As a single mother living in Edinburgh, Scotland, Rowling became an international literary sensation in 1999, when the first three installments of her Harry Potter children's book series took over the top three slots of The New York Times best-seller list after achieving similar success in her native United Kingdom. The phenomenal response to Rowling's books culminated in July 2000, when the fourth volume in the series, Harry Potter and the Goblet of Fire, became the fastest-selling book in history.As a single mother living in Edinburgh, Scotland, Rowling became an international literary sensation in 1999, when the first three installments of her Harry Potter children's book series took over the top three slots of The New York Times best-seller list after achieving similar success in her native United Kingdom. The phenomenal response to Rowling's books culminated in July 2000, when the fourth volume in the series, Harry Potter and the Goblet of Fire, became the fastest-selling book in history.

By the summer of 2000, the first three Harry Potter books, Harry Potter and the Sorcerer's Stone, Harry Potter and the Chamber of Secrets and Harry Potter and the Prisoner of Azkaban earned approximately $480 million in three years, with over 35 million copies in print in 35 languages. In July 2000, Harry Potter and the Goblet of Fire saw a first printing of 5.3 million copies and advance orders of over 1.8 million. After a postponed release date, the fifth installment, Harry Potter and the Order of the Phoenix, hit bookstores in June 2003. The sixth installment, Harry Potter and the Half-Blood Prince, sold 6.9 million copies in the United States in its first 24 hours, the biggest opening in publishing history. Prior to its July 2007 release, the seventh and final installment in the Harry Potter series, Harry Potter and the Deathly Hallows, was the largest ever pre-ordered book at Barnes & Noble and Borders bookstores, and at Amazon.com.

Rowling, now Britain's 13th wealthiest woman—wealthier than even the Queen—does not plan to write any more books in the series, but has not entirely ruled out the possibility  she decided to suicide at the age of thirty.