About layers

When you create, import, or scan an image in Photoshop Elements, the image consists of a single layer. If you're simply retouching the image, you don't have to create new layers. However, if you plan to add different elements to your image, layers will make your task a lot easier.

The power of layers is that they allow you to work on one element of your image without disturbing the others. Until you combine, or merge, the layers, each layer remains independent. This means you can experiment freely with different compositions without making permanent changes to your overall image. In addition, special features such as adjustment layers, fill layers, and layer styles let you create sophisticated effects.

A good way to think of layers is as sheets of acetate stacked one on top of the other. Where there is no image on a layer, you can see through to the layers below. Behind all of the layers is the background. In the following illustration, each animal and the map are on separate layers. The dark texture is the background. Depending on how you stack and position the layers, the composition changes.

Using Layers > About layers