Drawing on both anthropology and philosophy, this paper argues that the profiled form of the human hand is a universally recognizable image; one whose significance transcends temporally and geographically defined cultural divisions, and represents the earliest known artistic symbol of the human form. The unique co-occurrence of five properties in the image of the human hand and the way it is recognized support this argument, including that it is: (1) unmistakably a hand, (2) unmistakably human, (3) a universal point of (...) interface, (4) a universal referent of scale, and (5) an easy way of making a complex shape. This underappreciated aspect of hand art makes these images among the most important forms of early artistic expression encountered in the prehistoric record. (shrink)