The document discusses the principles of web design including unity, variety, balance, scale and proportion, rhythm, emphasis, and simplicity. It provides examples of each principle, such as using consistent colors to achieve unity, incorporating different design elements for variety, balancing elements on each side of the page, making the picture the focal point, employing lines to create movement, highlighting important elements with large text and images, and including only essential components. The document was authored by Josh Bentele, Melissa Nichols, and Nick Harrod.