Abstract
This chapter uses the patterns of inference that the authors find in the history to understand how photography can be practiced as an art. The history contains the makings of some sophisticated reasoning for the skeptical claim that photography is not an art. The argument for skepticism about photographic art brings on questions about the nature of photography and when it is an art. Purity is a tool designed to sharpen the question of whether photographs can be works of art by nature. The nature of photography is depiction by belief‐independent feature‐tracking. Belief‐independent feature‐tracking is incompatible with depictively expressed thought. Photography is a signaling system wherein individual photographs are cues to the appearance of depicted scenes. Drawing is another signaling system of the same type, since drawings also cue the appearance of depicted scenes. Unlike drawings, though, photographs are reliably honest signals.