The head is hard to light until you stop seeing skin and start seeing planes. This model breaks it into flat facets, forehead, cheek, nose, jaw, so you can read which way each surface faces.

This model sits between the Loomis Method, which frames the head as a sphere with construction lines, and the detailed Interactive Face Lighting Reference. The planes are the middle step, enough structure to light with confidence, still simple enough to read at a glance.

Orbit the camera, rotate the head, and right-click to recolor it. Add lights, reposition them, and watch which planes light up and which fall into shadow.

Studying value across many angles at once? The Value Shading Reference gives you a ring of 6 planar heads so you can compare them all at once.