Press Shift + Command + 3 to capture the entire screen
Press Shift + Command + 4 to capture a selected area
Press Shift + Command + 4, then press Spacebar to capture a window
Press Shift + Command + 5 to open screenshot and screen recording options
Press Shift + Command + 6 to capture the Touch Bar on supported Macs
Find saved screenshots on the desktop by default
Press Control with a screenshot shortcut to copy the screenshot to the clipboard instead of saving it