Praxis Art Content Knowledge (5134)

The principles of design describe how the elements are organized. Textbooks list them differently, but the Praxis expects you to know balance, contrast, emphasis, movement, pattern, rhythm, unity, variety, proportion, and scale, plus harmony and repetition, which some lists treat separately. The most important idea for the exam is the relationship between elements and principles: a principle is never present by itself; it is always produced by some arrangement of elements.

Symmetrical (formal) balance places equivalent weight on either side of a central axis and conveys order, stability, and authority; approximate symmetry varies details while keeping the overall mirror structure. Asymmetrical (informal) balance uses unequal elements that still feel stable, often a large, quiet area offset by a small, intense one, as in Degas’s off-center compositions influenced by Japanese prints. Radial balance arranges elements around a center, as in Gothic rose windows, Tibetan mandalas, and the plan of a dome. Crystallographic or allover balance spreads equal emphasis across the whole surface, as in Pollock’s poured paintings.

Visually heavy elements placed off center must be balanced by several lighter elements, by placement farther from the center (like a seesaw), or by intensity. A small spot of saturated red can balance a large gray mass.

Emphasis creates a focal point and subordinates other areas. Artists create it through contrast (the strongest light-dark or color contrast), isolation (a single figure apart from a group), convergence (lines and gazes pointing to the subject), placement (center or an intersection of thirds), and detail (sharp focus against loose handling). Visual hierarchy is the order in which a viewer encounters elements, from the dominant focal point to secondary accents to subordinate areas. In Goya’s The Third of May 1808, the lantern lights the white shirt of the central victim, the anonymous firing squad leans in with a repeated diagonal of rifles, and the victim’s raised arms recall a crucifixion, so value contrast, line, and gesture all reinforce one focal point.

Movement is either the path of the eye through a composition or the depiction of motion. Futurist artists such as Giacomo Balla (Dynamism of a Dog on a Leash) showed motion with repeated, blurred forms, borrowing from Étienne-Jules Marey’s chronophotographs. Pattern is repetition of a motif across a surface; rhythm is repetition that sets up a beat and implies movement.

Unity is the sense of coherence. It is produced by repetition (repeating a color or shape), proximity (grouping elements), continuity (lines and edges leading from one part to the next), and a consistent style or palette. Harmony is the pleasing relationship of similar elements, such as analogous colors or related shapes. Variety introduces difference. The two work as a pair: too much unity becomes monotonous, too much variety becomes chaotic. The standard teaching phrase is “unity with variety.”

Proportion concerns relationships within the work. Ancient Egyptian artists used a grid to fix the proportions of the human figure; the Greek sculptor Polykleitos set out a canon of ideal proportions in his treatise and embodied it in the Doryphoros (Spear Bearer); Leonardo’s Vitruvian Man illustrates the Roman architect Vitruvius’s claim that the human body fits within a circle and a square. Distortion of proportion is expressive: Mannerist painters such as Parmigianino (Madonna with the Long Neck) and El Greco elongated figures, and Giacometti’s attenuated figures suggest isolation.

The golden ratio (phi, about 1 : 1.618) divides a line so that the whole is to the larger part as the larger part is to the smaller. Ratios of consecutive Fibonacci numbers (1, 1, 2, 3, 5, 8, 13, 21…) approach phi. The golden rectangle and golden spiral are derived from it, and Le Corbusier built his Modulor proportioning system on it. Many popular claims that ancient buildings or Renaissance paintings were laid out by the golden ratio are disputed; for the exam, know the ratio, the Fibonacci connection, and its use as a proportioning tool.

Scale compares the size of an object with a standard, normally the human body. Monumental scale produces awe and public presence (the colossal statues at Abu Simbel; Claes Oldenburg’s giant everyday objects); intimate scale invites close, private looking (Persian and Mughal miniature painting, Nicholas Hilliard’s portrait miniatures). Hierarchical scale makes the most important figure largest regardless of position in space (Chapter 4).

The blueprint asks you to explain relationships between elements and principles. A principle is the result; elements are the means. The same element can serve several principles, and the same principle can be produced by different elements.

Many works can be analyzed by their underlying geometry. Recognizing the structure tells you which principle dominates.

The rule of thirds divides a picture into nine equal sections with two horizontal and two vertical lines. Placing the main subject on a line or at one of the four intersections (often called power points) usually produces a more dynamic, asymmetrical composition than centering it. Horizons are commonly set on the upper or lower third line rather than across the middle. The guideline is widely taught in photography and design; centering remains the right choice for formal, symmetrical subjects.