The document outlines five key design principles: balance, rhythm, proportion, harmony, and emphasis. It defines each principle and provides examples. Balance can be symmetrical, with equal elements on both sides of a central point, or asymmetrical, with differing but visually balanced elements. Rhythm leads the eye through a design. Proportion refers to the relative sizes of elements. Harmony involves both unity of style and variety through different compatible elements. Emphasis draws the focal point of a design.