The Harry Potter fandom is that group of people who are fans of the Harry Potter books and films. This fandom contains some of the most rabid 'shippers in the known universe, believed to be surpassed only by Pokémon (and maybe Sonic the Hedgehog). They are also some of the most ardent in defence of their fandom, in the most extreme cases perceiving any slight against their favourite characters as a personal attack (surpassed in this perhaps only by Twilight).