Visuals play several important roles in instruction such as providing concrete referents for ideas, motivating learners, and simplifying complex information. The process of visual design involves selecting elements, choosing a pattern, and arranging elements. Key elements include realistic, analogic, and organizational visuals as well as verbal elements like letter style and size. Effective patterns consider alignment, shape, balance, color scheme, and appeals. Arrangement principles include proximity, directionals, figure-ground contrast, and consistency.