Harry Potter and the Prisoner of Azkaban is the third novel in the Harry Potter series, written by J. K. Rowling. The book follows Harry Potter, a young wizard, in his third year at Hogwarts School of Witchcraft and Wizardry. Along with friends Ron Weasley and Hermione Granger, Harry investigates Sirius Black, an escaped prisoner from Azkaban who they believe is one of Lord Voldemort's old allies.
The book was published in the United Kingdom on 8 July 1999 by Bloomsbury and in the United States on 8 September 1999 by Scholastic Inc. Rowling found the book easy to write, finishing it just a year after she had begun writing it. The book sold 68,000 copies in just three days after its release in the United Kingdom, and since has sold over three million in the country. The book won the 1999 Whitbread Children's Book Award, the Bram Stoker Award, the 2000 Locus Award for Best Fantasy Novel, and was short-listed for other awards, including the Hugo.
The film adaptation of the novel was released in 2004, grossing more than $796 million and earned notable critical acclaim. Video games loosely based on Harry Potter and the Prisoner of Azkaban were also released for several platforms, and most obtained favourable reviews.
Joanne "Jo" Rowling, OBE, FRSL (/ˈroʊlɪŋ/; born 31 July 1965), pen names J. K. Rowling and Robert Galbraith, is a British novelist, screenwriter and film producer best known as the author of the Harry Potter fantasy series. The books have gained worldwide attention, won multiple awards, and sold more than 400 million copies. They have become the best-selling book series in history and been the basis for a series of films which is the second highest-grossing film series in history. Rowling had overall approval on the scripts and maintained creative control by serving as a producer on the final instalment.
Born in Yate, Gloucestershire, England, Rowling was working as a researcher and bilingual secretary for Amnesty International when she conceived the idea for the Harry Potter series while on a delayed train from Manchester to London in 1990. The seven-year period that followed saw the death of her mother, birth of her first child, divorce from her first husband and relative poverty until she finished the first novel in the series, Harry Potter and the Philosopher's Stone, in 1997. There were six sequels, the last, Harry Potter and the Deathly Hallows, in 2007. Since then, Rowling has written four books for adult readers, The Casual Vacancy (2012) and—under the pseudonym Robert Galbraith—the crime fiction novels The Cuckoo's Calling (2013), The Silkworm (2014) and Career of Evil (2015).
Rowling has lived a "rags to riches" life story, in which she progressed from living on state benefits to multi-millionaire status within five years. She is the United Kingdom's best-selling living author, with sales in excess of £238m. The 2016 Sunday Times Rich List estimated Rowling's fortune at £600 million, ranking her as the joint 197th richest person in the UK. Time magazine named her as a runner-up for its 2007 Person of the Year, noting the social, moral, and political inspiration she has given her fans. In October 2010, Rowling was named the "Most Influential Woman in Britain" by leading magazine editors. She has supported charities including Comic Relief, One Parent Families, Multiple Sclerosis Society of Great Britain and Lumos (formerly the Children's High Level Group).
In 2004, Forbes named Rowling as the first person to become a U.S.-dollar billionaire by writing books, the second-richest female entertainer and the 1,062nd richest person in the world. Rowling disputed the calculations and said she had plenty of money, but was not a billionaire. The 2016 Sunday Times Rich List estimated Rowling's fortune at £600 million, ranking her as the joint 197th richest person in the UK. In 2012, Forbes removed Rowling from their rich list, claiming that her US$160 million in charitable donations and the high tax rate in the UK meant she was no longer a billionaire. In February 2013 she was assessed as the 13th most powerful woman in the United Kingdom by Woman's Hour on BBC Radio 4.
In 2001, Rowling purchased a 19th-century estate house, Killiechassie House, on the banks of the River Tay, near Aberfeldy, in Perth and Kinross. Rowling also owns a £4.5 million Georgian house in Kensington, West London, on a street with 24-hour security.