“Rules” of photographic composition 2

Composition is an area of photography that includes many aspects. Given the relatively short period of instruction for this design concept and prototype, I’ll need to choose the concepts I’ll include and eliminate.
A number of possibilities include: rule of thirds, golden mean (same as the rule of thirds?), balance, texture, rhythm, mergers, space, shape, point of view, perspective, pattern, motion, line (horizontal, s-shaped, vertical, diagonal), framing, contrast & variety, simplicity.

In addition, a number of the areas some photographers contain in “composition” are covered in other areas of photography, e.g., depth of field, motion/shutter speed, etc.