When you begin learning Photoshop, the first thing you will want to master is how to use a clipping path in Photoshop. This is the process in which you can erase unwanted parts of an image with the use of a simple stroke or a line. You can do this with the help of a brush or a knife, and you can use it in conjunction with a color or a pattern to get the image you want. If you know how to use a clipping path in Photoshop, then you have an edge over your competitors because most beginners would simply use the background image of their picture to erase unwanted parts of the image.