You can also hit 'space' after cmd+shift+4 to get a little camera icon that takes a screenshot of only the window you click on. It works for any window, the des

You can also hit 'space' after cmd+shift+4 to get a little camera icon that takes a screenshot of only the window you click on. It works for any window, the desktop, the menu bar, any menu, and interestingly enough: all of the icons sitting on your desktop independent of anything else.