Layers

So far the work we have been doing with the images is directly into the pixels themselves. What is much more useful is to do this work on a layer - this way you can safely making corrections without interfering with the image itself. 

Where do I find the Layers panel?
How do I use layers to correct images?

Where do I find the Layers panel?

Figure 1 This movie shows you where to find the Layers panel and how to create and delete new layers.

How do I use layers to correct images?

Figure 2 This movie shows how to correct highlights in an image by using layers and then the eraser tool to wipe out areas where you don't want the correction.