Visual arguments—arguments that appeal to visual elements essentially—are legitimate arguments. To show this, I first consider what I call (perfect) fit arguments—arguments in which the recognition that items fit together suggests that they were once conjoined, perhaps originally. This form of argumentation is a type of abduction or inference to the best explanation (IBE). I then consider mathematical visual meta-arguments—arguments in which the validity or soundness of a mathematical argument is confirmed or refuted by appeal to diagrams
