The wiki is aware that there is a grey zone here, and the OSM data model always struggles with places that offer a wide range of stuff.


tourism=gallery - An art gallery. Art galleries may sell the works, but this is not the primary purpose. The distinction with art shops may be tricky. Many art shops are named as a "gallery" but are clearly still art shops. Sometimes a place may be very much styled as an art gallery, but private galleries which are primarily funded by selling the works to visitors would still be tagged shop=art. Meanwhile a private gallery with a high turnover of visitors and relatively infrequent sales (expensive art!) would count as a tourism=gallery.

shop=craft - An arts and crafts supply store. Commonly sold items are paper, canvas, paint, pencils, crafting wood, crafting tools, etc.