The Buffyverse canon consists of materials that are thought to be genuine (or "official") and those events, characters, settings, etc., that are considered to have inarguable existence within the fictional universe established by the television series Buffy the Vampire Slayer. The Buffyverse is expanded through other additional materials such as comics, novels, pilots, promos and video games which do not necessarily take place in exactly the same fictional continuity as the Buffy episodes and Angel episodes. Star Trek, Star Wars, Stargate and other prolific sci-fi and fantasy franchises have similarly gathered complex fictional continuities through hundreds of stories told in different formats. Definition Using the religious analogy of a canon of scripture (see Biblical canon), things that are not canon are considered "apocryphal." When a body of work is not specifically accepted or rejected by an authority, "canon" can be a fluid term that is interpreted differently by different people. This is the case with "Buffyverse canon", which has yet to be publicly defined by an authority to the satisfaction and consensus of all observers (see: links to canon debates). The creator of the Buffyverse, Joss Whedon, has implied that additional materials he was not heavily involved in creating were separate from canon. When asked in an interview about canon, Whedon stated: Canon listing This is an overview of what has been dubbed official Buffyverse canon by the series creator Joss Whedon: All 144 episodes of Buffy the Vampire Slayer All 110 episodes of Angel The 1999 comic series The Origin The Buffy the Vampire Slayer Season Eight comic series and related one-shots The Buffy the Vampire Slayer Season Nine and Angel and Faith comic series, as well as spin-offs (Spike: A Dark Place and Willow: Wonderland) The Buffy the Vampire Slayer Season Ten and Angel and Faith Volume 2 comic series The Buffy the Vampire Slayer Season Eleven and Angel comic series and Giles spin-off The Buffy the Vampire Slayer Season Twelve comic series The Angel: After the Fall comic series (#1–17) The Spike: After the Fall comic series The Spike comic series The Fray comic series The Tales of the Slayers one-shot The Tales of the Vampires comic series Comics and novels Outside of the TV series, the Buffyverse has been expanded and elaborated on by various authors and artists in the so-called "Buffyverse Expanded Universe". The Buffyverse novels and Buffyverse comics are licensed by 20th Century Fox,