The functions of still pictures are: to introduce a topic, to demonstrate a process, to enrich and enliven, to
practicalize detailed study, recall past events, to correct misconception, to prevent misconception, to create atmosphere, to provide setting, to build background, to explain terminology, to test learning, to test learning, to complete research, to publicize an event, to compare and contrast, to raise questions, to resolve a problem, to develop insight and appreciation, to stimulate reading, to invite participation, to create awareness, to dramatize a point, to develop critical judgment, to form value judgment.