Harry Potter a cause-and-effect relationship, there is a clear correlation, and it seems that Harry Potter's cultural impact may be stronger than just a fandom bond. Many fan fiction and fan art works about "Harry Potter" have been made. In March 2007, "Harry Potter" was the most commonly searched fan fiction subject on the internet. At the University of Michigan in 2009, StarKid Productions performed an original musical parodying the "Harry Potter" series called "A Very Potter Musical". The musical was awarded "Entertainment Weekly"'s 10 Best Viral Videos of 2009. The sport Quidditch, played by characters in the "Harry Potter" series, was
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