This document discusses basic principles of visual design for presentations and websites. It emphasizes grouping related items together through proximity and alignment. Elements should be repeated throughout the design for consistency, and contrast used to differentiate things that are not the same. Visual hierarchies should make more important items more prominent and relate logical groupings visually through positioning and spacing. Text elements like headings, lists, and formatting help provide clarity and emphasis. Dense blocks of filler text should be avoided in favor of well-structured paragraphs with appropriate line spacing.