The machine in the ghost -- A computer art form -- Live wires: computing interaction -- Work to rule -- Artist to audience -- Computer art poetics -- Atari to art -- Envoi.

In this paper I target the relationship between two prints that are roughly qualitatively identical and share a causal history. Is one an artwork if and only if the other is an artwork? To answer this, I propose two competing principles. The first claims that certain intentional relations must be shared by the prints (e.g., editioned prints vs. non-editioned prints). The second, which I endorse, appeals only to minimal print ontology, claiming that the two prints need only be what I (...) call 'relevantly similar' to one other. There are no trumping features over and above relevant similarity. For any pairwise comparison of relevantly similar prints, one print being an artwork is both necessary and sufficient for the other print being an artwork. (shrink)