Twelve questions worth asking, including the three that tell you the most and that almost nobody thinks to ask.

Somebody asked what software I made a painting in. It is a stick with hair on it. Here is how to tell an original from a print or a generated image, using your own eyes and about a minute.

Scale, surface and light are the three things a screen takes away from a painting. Here is exactly what changes when the work arrives on your wall, and how to buy well from a photograph anyway.