Disclosed is a method of manipulating viewable objects that includes providing a touch screen display capable of stereoscopic displaying of object images, wherein a zero-plane reference is positioned substantially coincident with the physical surface of the display, displaying on the touch screen a first object image and one or more second object images, wherein the object images are displayed to appear at least one of in front of, at, or behind the zero-plane, receiving a first input at the touch screen at a location substantially corresponding to an apparent position of the first object image, and modifying the displaying on the touch screen so that at least one of the first object image and the one or more second object images appear to move towards one of outward in front of the touch screen or inward behind the touch screen in a stereoscopic manner.