Rowling finished writing Harry Potter and the Deathly Hallows in January 2007. Before its release, Bloomsbury reportedly spent GB£10 million to keep the book's contents safe before its release date. American pulisher 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.
Released globally in 93 countries, Deathly Hallows broke sales records as the fastest-selling book ever. It sold 15 million copies in the first 24 hours following its release, including more than 11 million in the U.S. and UK alone. The previous record, 9 million in its first day, had been held by Harry Potter and the Half-Blood Prince. The novel has also been translated into over 120 languages, including Ukrainian, Swedish, and Hindi.