Continuity editing is a system of joining shots together to create the illusion of a continuous and clear narrative action. When a scene is broken up into a sequence of shots for the purpose of achieving greater dramatic emphasis in main stream narrative films, the shots are usually reconnected smoothly so that viewers do not notice the cut or lose their orientation in screen space. This is often achieved by using matches or match cuts. Techniques of continuity are what make editing known as the invisible craft.