Books can tap into the site's icon library by including icon URLs as images. For a full list of site icons, see the Site Resources page.
Example Site Icons
The site uses SVGs for icons, so you will likely need to include a style attribute in your image tag where you define the width to ensure that it looks the way you like. The nice thing about this is that it means you can scale icons as large as you would like without losing any quality.
This content is provided to you freely by EdTech Books.
Access it online or download it at https://edtechbooks.org/userguide/icons.