Graphic Design: Principles of Design

Designers use elements in their designs that are used in artwork. Principles are a concept of design that helps organize or arrange certain aspects in one's work. These principles are applied to affect the content of the work, or the message being communicated.

The main principles are:

Balance - the distribution of the visual weight of objects, colors, texture, and space

Proportion - the feeling of unity created when all parts relate well with each other

Rhythm - created when one or more elements of design are used repeatedly to create a feeling of organized movement

Emphasis - the part of the design that catches the viewer's attention

Unity - the feeling of harmony between all parts of the work of art

There are many other principles, however these are the most basic ones that are utilized in art and design.
These principles can be seen anywhere, from logos to signs. Even just looking up at the menu at McDonald's, you can observe the way these principles were used in the arrangement of the entire layout.