Windows are able to make your basement more visually pleasing and boost safety. Large basement windows, sometimes called "egress windows," from Pella of Jackson are created to let more light into underground rooms than the older, smaller, rectangular windows that are put above ground. They also give you an escape in case of an emergency.
The primary distinction between basement, or egress, windows and standard windows is that basement windows must be made for an average-sized person to escape through in order to meet safety requirements outlined in building codes. You can select from appropriately sized casement, sliding or double-hung windows when you add basement windows. Be sure you fully understand local building codes before you purchase basement windows.