This document discusses principles of web design such as unity, variety, balance, scale and proportion, rhythm, emphasis, and simplicity. It provides examples of how different websites like Canvas, Instagram, Facebook, Flickr, Hugs for Monsters, PSU, and Twitter demonstrate these principles through their use of alignment, image sizes, symmetrical designs, radial layouts, centralized focal points, and limited design elements. The document aims to illustrate how following principles of design can improve the organization and user experience of a website.