The Six Principles of Graphic Design

I am currently taking a course on graphic design by Justin Seeley of Lynda.com. He says there are six principles of graphic design. They are:

1. Balance

2. Proximity

3. Alignment

4. Repetition

5. Contrast

6. White Space

He also reminds us that the old principle of KISS still applies. It now stands for Keep It Super Simple. I learned that was an acronym for something else which I will not repeat.