1. The distance from the center (greater distance = greater weight).
2. The greater the depth an area of the visual field reaches, the greater the weight it carries.
3. Size (larger = heavier)
4. Bright colors are heavier than dark. (example: red is heavier than blue)
5. Intrinsic interest areas are heavier (keeps the viewer's attention longer)
6. Isolation (example: the sun or moon in an empty sky)
7. Shape (regular geometric shapes carry greater weight)
8. Compactness of an arrangement.
9. Orientation. (vertical orientation is heavier than oblique.)
Interestingly, Arnheim notes that weight counts more in the upper part of perceived space than in the lower. I'll go into "sidedness" another time. Prior to reading this book, I hadn't given thorough consideration to weight and direction in such a comprehensive way. It's time to do some experiments and see how this works! More on that, later.