To Screenshot On Mac is easier than you thought, just follow the steps below and yo get your desired result;

1. Command-Shift-3 – To screenshot the entire screen.
2. Command-Shift-4 – To screenshot a selected part of the screen for screenshot.
3. Command-Shift-4, then space bar, then click on a window – To screenshot a window.
4. Command-Shift-6 – To save screenshot of touch bar.

If you’re working on your own personal computer, you can create a folder for the project and save your screen shots there.   The file name should all be lower case, contain no spaces, and end in an extension that signifies what file type it is, E.g   media_nigeria.png, medianigeria.jpeg