Below are three Google Drive add-ons to visually enrich your documents and presentations. They provide access to a huge library of professionally designed icons to insert into Docs, Slides, Spreadsheets, and Forms. Some of these resources provide both free and premium versions, obviously with the latter offering more options and choices. You can also check educational icons resources to learn more about other tools and platforms I reviewed here which provide access to educational icons to use in your classroom projects.
This extension works with Slides, Docs, and Spreadsheets and offers over 180000 icons in over 35 popular styles. Icons are organized into various categories and are searchable through keywords. When you find the icon you want, click on it and adjust the size and colour to your liking. The add-on is not totally free, it does offer in-app-purchases.
Access over 1800 professionally designed icons to add to your Google Slides."You can choose any color you want and the icons are imported in your slides with a transparent background. A very simple way to choose the perfect icons to illustrate your presentation...Once you selected an icon and added it in your slide, right-click and select "Format options" to drop a shadow, add a reflexion and much more."