Sometimes you want to select more than one layer at once. Of course, to edit and manipulate a layer, you need to select it. (If you’re new to layers in Photoshop, take a look at our Introduction to layers tutorial.) They’re a great way to compose a design, because they let you edit and move design elements independently of each other.
If you’ve used Photoshop for any length of time, you no doubt use layers fairly extensively.
