If you want to create graphics, manipulate images these are two popular programs ( the second is vector graphics program):
INKSPACE
https://www.youtube.com/watch?v=8f011wdiW7g&list=PLqazFFzUAPc5lOQwDoZ4Dw2YSXtO7lWNv
GIMP
https://www.youtube.com/watch?v=_wDDqs95TKY&list=PLqazFFzUAPc4vITMJaF3Fnqh3pccSMnC4
For gimp, we offer a whole PATH (just click)
The following program has to do with publishng.
SCRIBUS
https://www.youtube.com/watch?v=hMlT9C6xcDw&list=PLqazFFzUAPc6U1RcNRBMeCK6Hg3g_S6aN