GIMP is a free versatile graphics manipulation package. Each task requires a different environment and GIMP allows you to customize the view and behavior the way you like it.GIMP features a great fullscreen mode allowing you to not only preview your artwork but also do editing work while using the most of your screen estate.
I learned to use GIMP 2.0 on my own and started making book covers with it. I changed to the 2.10 version and have been unable to produce a decent cover since. I have now downloaded the 2.8 version and am so happy to see the normal toolbox and filters! I thought I would never make another cover! The 2.10 version must be for the pros, I recommend 2.8.
I still stick with this version. Much prefer it to anything newer.
Much easier to use than the newer version!