it's a rule on composition for artwork/photography/whatever. basically, you take the piece and evenly divide it up into three sections, both lengthwise and widthwise, so then you have nine evenly sized boxes. there should be a major focal point on one of the intersections of the three boxes to give the piece good composition.

that was a bad explanation, so here's wikipedia.
http://en.wikipedia.org/wiki/Rule_of_thirds

i wasnt being rude.
and i could if i wanted because its my journal.

but i wasnt being rude