Icon fonts are great because, as you may have guessed, they are delivered as a font. This gives them a number of advantages over traditional image icons. For instance, if you want to change the color, it can easily be done with CSS. Whereas with an image, you would need to have a separate version of the icon. Scaling and adding effects, such as shadows, is just as simple.
Here we’ve rounded up a few useful sets of free icon fonts. You’ll find that these can be invaluable for your interface and web design projects.