GNOME is a free and open-source desktop environment whose mission is to provide a universally accessible desktop. It was started in 1997 as a KDE alternative and is developed by the GNOME project community. The document provides an overview of GNOME 3 and its goals of simplicity, beauty, and accessibility. It also lists many ways to get involved through contributions like programming, testing, documentation, translation, design, marketing, journalism, usability testing, administration, development and more.