Windows can make your basement more visually pleasing and boost safety. Large basement windows, sometimes called "egress windows," from Pella of Washington DC are created to permit more light into underground spaces than the older, smaller, rectangular windows that are put above ground. They also offer an escape in case of an emergency.
The main distinction between basement, or egress, windows and standard windows is that basement windows have to be large enough for an average-sized person to escape through in order to meet safety requirements set forth in building codes. You are able to pick from appropriately sized casement, sliding or double-hung windows when you add basement windows. Make sure you totally understand local building codes before your purchase of basement windows.