Cropping is the artists' term for trimming away unwanted parts of a picture. You can think of it as a specialized kind of selection, which is probably why the people who created Photoshop put the Crop tool in the same toolbox section as the Selection Marquees (see Figure 3.16). When you drag a cropping box around the part of the image you want to keep, click Shield on the Tool Options bar to darken the rest of the screen so that it's easier to see what's going on. Of course, you can also crop by making a selection with the Rectangular Marquee and then using the menu command Image→Crop to trim the picture.
Try it Yourself
Crop a Picture
To crop a picture, use any image and follow ...