Wikipedia:How to use the GIMP

The GIMP is a tool for manipulating bitmap images, especially photos, although it has some powerful functions for dealing with (other) web related graphics too.

As for most other powerful image manipulators, such as Photoshop or Paint Shop Pro, a lot of tutorials for this package have been written that can be found on the web using any decent search engine. Often the tutorials can be used interchangably: a moderately advanced GIMP user can follow Photoshop tutorials as if they were written for the GIMP, and the other way around, except of course where the tutorial uses a feature that one of the programs does not support.

One thing that should be noted by those who want to dive in right away: right clicking an image window will conjure up a menu that gives access to most of the GIMP's powerful filters and tools.

---

See also: Wikipedia:Graphics tutorials