The document discusses various principles of composition in architecture including contrast, balance, harmony, vitality, repose, restraint, accentuation, hierarchy, and definition. Contrast creates visual interest through differences in elements. Balance can be symmetrical or asymmetrical as long as there is a sense of equilibrium. Harmony involves selecting complementary elements while also incorporating variety. Vitality signifies liveliness through variations in solid and void. Repose creates a sense of calmness and tranquility. Restraint emphasizes simplicity and minimalism. Accentuation highlights important elements. Hierarchy establishes relative importance through size, shape, or placement. Definition clearly delineates forms and spaces.