Perspective is the angle and depth of a piece of art. Changing perspective allows for drastic differences. There is more than one kind of perspective, and all of them allow for more dynamic pieces of art if used correctly.
There are three common choices, and these are explained later.
Usually perspective deals with how close things appear, and correctly rendering perspective adds depth to an image and increases the impact of the composition.
One Point Perspective
You see this perspective often, images of roads, or landscape often have one point perspective.
Examples of one point perspective:
Two Point perspective
Two vanishing points in the horizon, usually at the sides. It can be harder to render, however, if used correctly, can be quite dynamic.
Three Point PerspectiveTwo vanishing points on the horizon, then a third vanishing point placed
either far forwards towards the viewer, or back away from the viewer.
This perspective is great for conveying large amounts space without looking too flat.