Taking a snapshot of all or part of your screen is easy! To take a snapshot of your entire screen, just press Command + Shift + the number 3 (all at the same time). To take a snapshot of just part of your screen, just press Command + Shift + the number 4 (all at the same time) then move the cursor to where you want to begin the snapshot and then drag the cursor to create a box of the content you want to copy. Once you stop dragging the cursor, the picture will appear on your desktop! Easy!!