Face

1. The front of the human head from the forehead to the chin and ear to ear. 2. A contorted facial expression. 3. A vertical surface of a building or cliff. 4. A part of an animal corresponding to the human face. 5. The general outward appearance of something. 6. The striking or working surface of an implement.

Russian psychologist Alfred Yarbus' research into viewer eye movement when looking at a picture, in the 1950s, revealed that people's attention is drawn primarily towards human faces, then people and other members of the animal kingdom, then other areas of high contrast and fine detail.

Consequently, the human face presents an excellent subject for photography.