The Clone Stamo

The clone stamp basically just takes a copy of the pic and you are just copieing the picture onto another picture but you are only pasteing some of it . it is kind of hard to explain but it helps make the photoshop look cleaner then just blending them together. say you have a shadow on the ground you dont want in the picture want in the picture, all you do is clone stamp the grass with no shadow and clone stamp over the shadow. and wa la no shadow.