Harry Potter and the Deathly Hallows the publisher of all "Harry Potter" books in the United Kingdom, on 30 June 1997. It was released in the United States on 1 September 1998 by Scholastic—the American publisher of the books—as "Harry Potter and the Sorcerer's Stone", after Rowling had received US$105,000 for the American rights—an unprecedented amount for a children's book by a then-unknown author. The second book, "Harry Potter and the Chamber of Secrets" was originally published in the UK on 2 July 1998, and in the US on 2 June 1999. "Harry Potter and the Prisoner of Azkaban" was then published a year later in
Harry Potter and the Philosopher's Stone Potter and the Order of the Phoenix" is the longest book in the series at 766 pages in the UK version and 870 pages in the US version. It was published worldwide in English on June 21, 2003. "Harry Potter and the Half-Blood Prince" was published on July 16, 2005 and sold 11 million copies in the first 24 hours of its worldwide release. The seventh and final novel, "Harry Potter and the Deathly Hallows", was published on July 21, 2007. The book sold 11 million copies within 24 hours of its release: 2.7 million copies in the UK and