<Tr> <Th> ISBN </Th> <Td> 0 - 545 - 01022 - 5 </Td> </Tr> <Tr> <Th> Preceded by </Th> <Td> Harry Potter and the Half - Blood Prince </Td> </Tr> <P> Harry Potter and the Deathly Hallows is the seventh and final novel of the Harry Potter series, written by British author J.K. Rowling . The book was released on 21 July 2007, ten years after publication of Harry Potter and the Philosopher's Stone (1997), by Bloomsbury Publishing in the United Kingdom, in the United States by Scholastic, and in Canada by Raincoast Books, ending the series that began in 1997 with the publication of Harry Potter and the Philosopher's Stone . The novel chronicles the events directly following Harry Potter and the Half - Blood Prince (2005), and the final confrontation between the wizards Harry Potter and Lord Voldemort, as well as revealing the previously concealed back story of several main characters . The title of the book refers to three mythical objects featured in the story, collectively known as the "Deathly Hallows"--an unbeatable wand, a stone to bring the dead to life, and a cloak of invisibility . </P> <P> Rowling finished writing Harry Potter and the Deathly Hallows in January 2007 . Before its release, Bloomsbury reportedly spent £ 10 million to keep the book's contents safe before its release date . American publisher Arthur Levine refused any copies of the novel to be released in advance for press review, although two reviews were submitted early . Shortly before release, photos of all 759 pages of the U.S. edition were leaked and transcribed, leading Scholastic to look for the source that had leaked it . </P>

When was harry potter and the deathly hallows book released