Or a 3-point perspective in drawing a dramatic comic book view of a city from a great height. As you increase the complexity of the view, ...

When I was in eighth grade, our art class culminated in big drawings done in two-point perspective, rows of blocks and buildings receding off to paired vanishing points on the horizon.

I love fun illusions, and I happened upon one that’s pretty interesting to see: an artist draws a glass of water that is startlingly 3-D: Oddly, the illusion is actually more convincing to watch ...