What are two faces of a waxing Moon and how do they appear?

The two faces of a waxing Moon are the illuminated side and the shadowed side. The illuminated side, which is increasing in visibility, appears brighter and is shaped like a crescent or gibbous, depending on its phase. The shadowed side remains dark and is not visible from Earth. As the Moon waxes, the illuminated portion grows larger, transitioning from a thin crescent to a full Moon.