Fonts are a necessary part of any graphic design project. They can add personality and style to your work, and can also be used to improve readability and accuracy. In order to install fonts in Illustrator, you first need to create a new file called “fonts.txt”. This file contains the font’s name, the size of the font, and the location where you want it to be installed. Next, open up Illustrator and click on the “Fonts” tab. Here, you’ll find a list of all of your current fonts. Choose one or more of these fonts and click on the “Install” button next to it. Once installation is complete, your new font will be added to your document!