Photographers that teach photo workshops will always include some kind of instruction about composing subjects in the frame. We have the rule of thirds, the golden rule, leading lines, light, depth, and other rules past down over the ages from painters to photographers.
When we show our photos to other photographers that know the rules, they try and analyze an image to see if it fits within the rules, and if not maybe throw out a few suggestions to help out a fellow photographer in making proper images.
