Description
Mac comes with a great built-in option to help you zoom in on a Mac in order to magnify your screen. This is great for screen recording or when you want to do a presentation. It's also helpful when you come across small items on your screen.
This method works on any Mac including Macbook Pro, Macbook Air, and any iMac. You can find the option in system preferences/accessibility.
Notes: macOS High Sierra currently has a bug with zoom when you record the screen.