Which design principle refers to the relationship of sizes within a composition?

• A. Proportion
• B. Rhythm
• C. Valance
• D. Harmony

Answer: (A)

Proportion is the relationship of sizes within a composition. It determines how big or small elements appear relative to each other and to the whole, shaping visual hierarchy, emphasis, and balance. By adjusting proportions, you make a dominant focal point stand out while keeping supporting elements in proper scale so the design feels cohesive. Rhythm focuses on repeated patterns to move the eye, harmony is about the overall compatibility of elements, and valance is not a primary principle governing size relationships. Therefore, proportion best describes how the sizes relate across the composition.