Henricus Guilielmus

This Dutch painter in the 1600s had a habit of slipping tiny scenes into the corners of his religious paintings—like a dog chasing its tail in the shadows of a saint’s halo. He wasn’t the most famous artist of his time, but he made sure every fold of a robe and flicker of candlelight felt real enough to touch. Hunt down *The Invocation of Saint Apollonia* and look for the wisp of smoke curling from the censer—it’s the kind of detail that makes you forget you’re looking at a painting at all.