1. A system for displaying images of a virtual three-dimensional book having one or more virtual pages, the system comprising: a display system capable of executing a display program, wherein images of the virtual three-dimensional book are produced on the display system, and wherein a magnification function is provided, the magnification function providing a virtual magnifier movable over the virtual pages, the virtual magnifier comprising: a central region for providing direct magnification for a desired portion of a virtual page; and one or more transition regions surrounding the central region for transitioning from direct magnification adjacent the central region to no magnification at the edge of the virtual magnifier.