Capture the Entire Screen: Press Shift + Command + 3 to take a screenshot of your entire screen. The screenshot will be saved to your desktop.
Capture a Portion of the Screen: Press Shift + Command + 4, then drag to select the area you want to capture. Release the mouse or trackpad button to take the screenshot.
Capture a Window or Menu: Press Shift + Command + 4, then press the Space bar. Click the window or menu to capture it.
Use the Screenshot App: Press Shift + Command + 5 to open the Screenshot app, which provides options to capture the entire screen, a selected portion, or a specific window.
Edit and Share Screenshots: After taking a screenshot, a thumbnail appears in the corner of your screen. Click it to edit the screenshot or share it directly from the thumbnail.