The document discusses principles of design including contrast, unity, pattern, repetition, emphasis, balance, movement, and gradation. Contrast refers to differences that create emphasis and interest. Unity relates to a sense of oneness. Pattern uses combinations of lines, colors and shapes. Repetition uses objects, lines, colors or shapes more than once. Emphasis places greater attention on certain areas. Balance creates visual equalization. Movement arranges elements to guide the eye's movement. Gradation is the gradual change of an element's value, color, or texture.