Choosing the best icon set for an application is extremely important in order to create a great and fluid design. First of all, these icons must respect all the visual experience guidelines, must be similar with the overall design and they need to help simplify the interaction and the navigation. You must avoid ambiguous icons to avoid the situation in which the user won’t be able to understand their actions, because this can lead to a lot of frustration and eventually to closing or removing the application.

In this article I have collected 20 gorgeous icon sets which are suitable for almost any type of design. These icons have a clean and descriptive look while following the principles of good design. Check them out and let me know what you think.

Delicious Berries

Jigsoar icons

Metro Icons for Icon Packager

Pace Social Icon Set

Retro Candy

Premium Pixels Icon Set

Yummygum

Mono Icons

Social Postage Stamps

Icons metro style

Social Media Badge Icons

Socialis 2

WhistlePuff Desktop Set

Metro Games Icons

33 Free Social Media Icons

Glyphicons

Token by Brsev

789 Modern Metro Style UI Icons

Geomicons

WP7 Mobile Icons