Harry Potter 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 – a record amount for a children's book by an unknown author. Fearing that American readers would not associate the word "philosopher" with magic (although the Philosopher's Stone is an ancient tradition in alchemy), Scholastic insisted that the book be given the title "Harry Potter and the Sorcerer's Stone" for the American market. The second book, "Harry Potter and the Chamber of Secrets", was originally published in the UK on 2 July 1998 and
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