I use GIMP every day. I use it to create my book covers, article graphics, and much more. Because of this, I strive to get as much power from the tool as possible. So, the day I stumbled upon G'MIC ...

As good an image editor GIMP is—out of the box, it can fall short of Photoshop at times. That said, you can use plugins to extend GIMP's functionality, and these make it even more powerful than ...