This document discusses principles of web design, including unity, variety, balance, scale and proportion, rhythm, emphasis, and simplicity. It provides examples of each principle, such as having elements organized and equally spaced for unity, using different colors and layouts for variety, evenly distributing text and pictures for balance, adjusting sizes of images for scale and proportion, showing motion through positioning for rhythm, drawing attention through placement and contrast for emphasis, and keeping the design basic and streamlined for simplicity.