Elements  - See more at: http://www.incredibleart.org/files/elements2.htm#sthash.ynzhwf0u.dpu

• Line

• is a mark on a surface that describes a shape or outline. It can create texture and can be thick and thin.  Types of line can include actual, implied, vertical, horizontal, diagonal and contour lines.f

• Shape

• is a 2-dimensional line with no form or thickness. Shapes are flat and can be grouped into two categories, geometric and organic.

• Value

• is the degree of light and dark in a design. It is the contrast between black and white and all the tones in between. Value can be used with color as well as black and white. Contrast is the extreme changes between values.

• Form

• is a 3-dimensional object having volume and thickness. It is the illusion of a 3-D effect that can be implied with the use of light and shading techniques. Form can be viewed from many angles.

• Space

• refers to variations in the perspective, and proportions of objects, lines or shapes. There is a variation of sizes in space of objects either real or imagined.

• Color

• refers to specific hues and has 3 properties, Chroma, Intensity and Value.  The color wheel is a way of showing the chromatic scale in a circle using all the colors made with the primary triad.  Complementary pairs can produce dull and neutral color.  Black and white can be added to produce tints (add white), shades (add black) and tones (add gray).

• Texture

• is about surface quality either tactile or visual. Texture can be real or implied by different uses of media. It is the degree of roughness or smoothness in objects

Principles  - See more at: http://www.incredibleart.org/files/elements2.htm#sthash.ynzhwf0u.dpuf

• Balance

• is a feeling of visual equality in shape, form, value, color, etc.  Balance can be symmetrical or evenly balanced or asymmetrical and un-evenly balanced.  Objects, values, colors, textures, shapes, forms, etc., can be used in creating a balance in a composition.

• Movement

• is a visual flow through the composition. It can be the suggestion of motion in a design as you move from object to object by way of placement and position.  Directional movement can be created with a value pattern. It is with the placement of dark and light areas that you can move your attention through the format.

• Unity/Variety

• Unity creates a sense of harmony and wholeness, by using similar elements within the composition and placing them in a way that brings them all together.
• Variety adds interest by using contrasting elements within the composition.

• Proportion

• Using the relative size of elements against each other can attract attention to a focal point. When elements are designed larger than life, scale is being used to show drama.

• Rhythm

• is a movement in which some elements recurs regularly. Like a dance it will have a flow of objects that will seem to be like the beat of music

• Emphasis

• is an area that first attracts attention in a composition. This area is more important when compared to the other objects or elements in a composition.  This can be by contrast of values, more colors, and placement in the format.

• Contrast

• offers some change in value creating a visual discord in a composition. Contrast shows the difference between shapes and can be used as a background to bring objects out and forward in a design. It can also be used to create an area of emphasis.