While creating a slide presentation to accompany your upcoming speech at
the World Health Organization (because you're a super successful diplomat
- go you!), you are careful to show very little text and only one or two
images at a time so your audience's focus is not stretched in too many
directions at once; you also make sure the images are either centered, or
evenly spaced on the screen; you also make sure to include just as much
blank negative space as you do images or text. You are most clearly
concerned with the following principle of visual design:
0 Balance
O Hierarchy
O Clarity
O Theming