As you may know, GIMP (GNU Image Manipulation Program) is an open-source advanced photo editor, providing the users the basic photo manipulation functions.GIMP Magazine Issue 4 has been released for free download. It is a 100 page pdf, providing explenations and instructions, allowing the gimp newcomers to accommodate with the basic work with the editing program.

GIMP Magazine Issue 4 can be downloaded from this link. More information can be found on the official site.
You can also download the previous issues, for free:
For those who don’t know, GIMP 2.8.6 is the latest version available. To install GIMP 2.8.6 on Ubuntu, Linux Mint and Elementary OS, see the instructions in this article.