Windows can make your basement more aesthetically pleasing and offer added safety. Large basement windows, sometimes known as "egress windows," from Pella of Scottsdale are built to let more light into underground rooms than the older, smaller, rectangular windows that sit above ground. They also provide a way out in case of an emergency.
The primary differentiator between basement, or egress, windows and standard windows is that basement windows must be big enough for an average-sized person to escape through in order to meet safety requirements set forth in building codes. You can select from correctly sized casement, sliding or double-hung windows when you add basement windows. Make sure you fully understand local building codes prior to purchasing basement windows.