How to Install Gimp on Ubuntu and Use Help Feature in GIMP
This video goes through 3 different methods on install GIMP on Ubuntu. It also demonstrates how to use help feature within GIMP.
GIMP (GNU Image Manipulation Program) is a free and open-source raster graphics editor used for image manipulation (retouching) and image editing, free-form drawing, transcoding between different image file formats, and more specialized tasks. It is not designed to be used for drawing, though some artists and creators have used it for such.
GIMP is released under GPL-3.0-or-later license and is available for Linux, macOS, and Microsoft Windows.