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 specific window
Press Command + Shift + 5 to open screenshot options
Use the screenshot toolbar to choose screen, window, or selected portion
Click Capture to save the screenshot
Find the saved screenshot on your desktop by default
Press Control with the screenshot shortcut to copy the screenshot to the clipboard instead of saving it