The document discusses the key principles of design - balance, unity, emphasis, movement, rhythm, contrast, and proportion. It provides definitions and examples for each principle. Balance refers to the visual weight and arrangement of elements, while unity creates a sense of oneness between all parts of a work. Emphasis uses techniques like repetition to draw the eye to certain elements. Movement and rhythm are created through lines and repetition that lead the viewer's eye across a piece. Contrast involves differences between elements, and proportion concerns the relationships between parts and the whole.