Gnome

GNOME is a desktop environment. Is it part of the GNU Project. GNU Object Model Environment (Gnome) is a desktop environment and graphical user interface that runs on top of a computer operating system, user-friendly desktop for Unix operating systems, based entirely on free software.

How to get Gnome
If you want to install Gnome on top off Debian use this commands. apt-get install aptitude tasksel tasksel install gnome-desktop --new-install