The application of perspective to forms, its purposes is to create the illusion of three-dimensionality and depth. To foreshorten is to depict two-dimensional images with the same perspective as the viewer actually would see them. Thus objects protruding in the foreground are made to recede. Source: Kimberley Reynolds and Richard Seddon, "Illustrated Dictionary of Art Terms"<br><br>The technique of representing a three dimensional image in two dimensions using the laws of perspective.<br><br> Perspective applied to a single object in an image, for a three-dimensional effect, which often results in distortion with possible emotional overtones. It is used particularly with the human figure, in Renaissance and Mannerist art.