Have you ever tapped off portions of a room before you painted it? Well then you have already masked before. In Photoshop you paint on a mask and in this tutorial we will be showing you how to do a Quick Mask to select an area and what a Layer mask is. We stated back in the Eraser tool tutorial that once you learn how to mask an image; you will never want to go back to the eraser tool. We will also be showing that the Transform Path which we explained in a previous tutorial is exactly the same as the Transform option.