Can be vertical, horizontal, curved or jagged. Examples: roads, sunsets, bridges.
Two-dimensional representation of objects. Examples: silhouetted photographs of birds.
Three-dimensional representation of objects, usually through the use of lighting and shadows.
Light and dark: the gradations of light and dark on a surface of objects.
The use of light to bring out details of an object, making it easy to see whether a surface is smooth or soft.
Using warm or cool colors to set a mood.
Either negative or positive space can be used to make a statement.