Icons are useful in a variety of design works. They can be used as interface elements for mobile apps, web navigations or even in t-shirt design, infographics, flyers, and other print media. This being the case, it is necessary that designers should know how to create icons or at least have a collection of these items which are ready to use. Fortunately, there are a lot of learning materials related to this area of graphic design, and also a considerable array of free icon sets that you can use without spending a penny. You can study some of the Illustrator icon tutorials on the web if you prefer the vector-based tool for a graphic software.
Meanwhile, you can make use of these high-quality and free icon sets if you want to save time from creating the icons from scratch. A number of these are free for both personal and commercial use, while some require permission from their authors if you were to use them for profit. Either way, all of these will prove valuable once the need arises. Check this out and enjoy!
20 high-quality icons.