Harry Potter and the Prisoner of Azkaban is the third novel in the Harry Potter series written by J. K. Rowling. The book was published in the UK on 8 July 1999 and in the US on 8 September 1999. The novel won both the 1999 Costa Book Awards and the Bram Stoker Award, and was short-listed for other awards, placing it among the most-honoured works of fantasy in recent history. A film based on the book was released on 31 May 2004, in the United Kingdom and 4 June 2004 in the U.S. and many other countries.
Of the first three books in the series, Prisoner of Azkaban took the shortest amount of time to write - Harry Potter and the Philosopher's Stone took five years to complete and Harry Potter and the Chamber of Secrets needed two years, while Harry Potter and the Prisoner of Azkaban was written in one year. Rowling's favourite aspect of this book was introducing the character Remus Lupin.