What is the purpose of being a portrait photographer?

Portraits can serve many purposes, from usage on a personal Web site to display in the lobby of a business.

answer; statuesque figures that cast shadows);

the correct answer for this question is:

it is system invented in 1872 that produced the first illusion of movement. basically it was a disk with a series of drawings around the edge, showing the same object in slightly different poses. when it was spun, it created the illusion of movement.

found this online : )