Press Command + Shift + 3 to capture the entire screen
Press Command + Shift + 4 to capture a selected area
Press Command + Shift + 4, then press Spacebar to capture a window
Press Command + Shift + 5 to open screenshot and screen recording options
Press Command + Shift + 6 to capture the Touch Bar on supported Mac models
Hold Control while using a screenshot shortcut to copy the screenshot to the clipboard instead of saving it
Press Escape to cancel a screenshot selection