A clipping mask is a technique used in graphics design and image editing to control the visibility of a layer or group of layers by using the content of another layer as a mask. The content of the mask layer is used to “clip” the visible area of the layers below it, allowing only the areas that overlap with the mask to be visible. This is a non-destructive way of hiding parts of an image or graphic, as the original layers remain intact and editable. Clipping masks are commonly used for creating complex shapes or effects, such as masking a photo with text or creating a gradient effect within a specific shape.