A figure, or foreground, is always seen in relation to its ground, what surrounds the figure, or its background 

• Gestalt Principle
• Contrast
• Hierarchy
• Proximity

Elements of similar size and shape are distributed around a center point.  It can be vertical, horizontal, or radial.

• Asymmetrical Balance
• Balance
• Symmetrical Balance
• Harmony

The adaptation of elements in relation to one another to form a pleasing, coherent whole. Balance and symmetry can be used to achieve this also.

• Rhythm
• Unity
• Harmony
• Repetition

Grouping similar elements together in in closeness.  The viewer’s eye sees similar grouped objects as a single unit. 

• Unity
• Alignment
• Balance
• Proximity

A way of making something more compelling and interesting. The concept is to take a composition and break it into thirds across your design, 

• Rule of Thirds
• Using Gridlines
• Cropping
• Asymmetrical Balance

Is the relative size of nearby design elements and is a powerful tool for creating visual hierarchy and visual interest.

• Proximity
• Scale
• Unity
• Alignment

The difference between two nearby elements.  The difference can be color, texture, scale, or shape. 

• brightness
• balance
• contrast
• texture

The reuse of identical or similar design elements throughout a design. 

• Movement
• Unity
• Repetition
• Rhythm

A strong, regular, repeated pattern, usually of movement or sound

• Rhythm
• Untiy
• Contrast
• Balance

Combination of rhythm and repetition causes the illusion of this element.

• Rhythm
• Movement
• Unity
• Balance