- The Harry Potter world starts with J.K. Rowling, and everyone is aware of the overwhelmingly popular seven-novel series. In addition, Rowling has written three short companion books and one short story prequel, all for charity.
- Based on the seven books, Warner Brothers created an eight film adaption of the series, with significant input from Rowling.
- At Universal Studio's Island of Adventure, The Wizarding World of Harry Potter recreates settings based on the novels and films. Both the film producers and Rowling were involved in creating a world that was consistant with the books and movies.
- Fans have created a music genre called Wizard Rock where artists preform only songs based on the Harry Potter universe. At one point, I owned CDs by the bands "Harry and the Potters" and "Draco and the Malfoys."
I realize this list only skims the surface of what is available to Harry Potter fans and what has been created by them. I only included things that I had personal experience with as a Harry Potter fan. I know there are countless websites devoted to Harry Potter fandom and fanfiction. When I was growing up, I wasn't very aware or interested in any of that, but I did love dressing up for the book and movie premiers, and I was able to go to Harry Potter world durring my senior spring break.