This document provides an overview of the GNOME desktop environment, including its core libraries and tools for developers as well as its main applications for users. It discusses GNOME's history and goals of being a free and easy-to-use desktop. The key libraries covered include GTK+, GLib, Pango, ATK, GDK, and GNOME VFS. Important developer tools like Glade, Anjuta, and GOB are also summarized. Finally, the document outlines many of GNOME's core applications and other notable programs.