When artists sell their work through galleries, it's a great idea to offer galleries a point of purchase (POP) card that travels with each purchase. POP cards carry 'their story' and visuals of their work out into the world. In essence, it's a tangible signature.
We've heard the phrase, "All roads leads to Rome." A POP card is kind of like leaving bread crumbs on the trail–leading folks who purchase art through galleries, back to the artists who created it.