The document discusses metafiction and its various forms and techniques in comic strips. It defines metafiction as fiction that is self-referential about its own fictional status. Metafiction in comics can take narrative forms, where characters are aware of being in a comic, or linguistic forms, where it directly addresses narrative/artistic techniques. Examples discussed include characters breaking the fourth wall to address readers or authors, comics within comics, and direct references to artistic elements like panels and speech bubbles.