Description
This is a novice guide to installing commonly used Microsoft Windows fonts like Arial and Calibri.

Note that the installed fonts will only be accessible under the user account that was used for this method, so this method is best-suited for personal systems with one or very few users. For a method that enables system-wide access, follow this tutorial.
 

Requirements
You must have access to your Microsoft fonts from Linux Mint. Any true type font (ttf) should work. If you are dual-booting Windows, and Linux Mint detects your Windows partition, you can access the fonts from Menu --> Computer, double-click your Windows partition and browse to /Windows/Fonts.

1. Navigate to the folder where your Windows fonts are installed.
2. Select all the fonts by click-dragging or selecting each font while holding down the Ctrl button.
3. Right-click your selection and click "Open With Font Viewer".
   • Note: a window will be opened for each font that was included in your selection, so if you selected a lot of fonts your screen may be flooded with windows.
4. In each window that opened, click "Install Font".

Now all your fonts are available from applications, as long as you are logged into the same user account that was used during the process.

Advantages
This method is entirely done via the graphical interface, and does not requiring typing commands.