The camera angle provides a point of view for the viewer. A close-up is probably the most powerful of all camera angles. It zooms in up close and personal, filling the frame with the subject. If it is a close-up of a person, you cannot avoid feeling what that person is feeling. You cannot avert your eyes. Another way to use camera angles to communicate feelings is to use a low angle looking upwards from the perspective of someone more powerful than the viewer, or a high angle looking down upon someone who is inferior. You can use camera angles to provide context, like an establishing shot of a building in which a scene takes place, or framed through a doorway or hallway. One should study how professionals use camera angles to add interest and communicate ideas to viewers.