Harry Potter and the Order of the Phoenix is the fifth instalment in the Harry Potter series written by J. K. Rowling. The novel features Harry Potter's struggles through his fifth year at Hogwarts School of Witchcraft and Wizardry, including the surreptitious return of Harry's nemesis Lord Voldemort, O.W.L. exams, and an obstructive Ministry of Magic.
It is the longest book in the series, and was published on 21 June 2003 by Bloomsbury in the United Kingdom, Scholastic in the United States, and Raincoast in Canada. The book has been made into a film, which was released in 2007, and has also been made into several video games by Electronic Arts. Harry Potter and the Order of the Phoenix has won several awards, including being named an American Library Association Best Book for Young Adults in 2003.