Duality
Two things that both have separate yet equal meanings but are free of each other is the principle of duality. For example, in the below image that I created we see a cat. You can call it a logo or call it simply a cat. Its meaning and what it truly is are completely separate of each other. Yes, it can be a called a cat, that is our English word for a creature with short ears and whiskers. But the image can be called any number of things. It can be called an outline, a cat, a logo, a cartoon – all these words are descriptive to the image in question but they are not 100% bound to the image. In other languages their names could be different but it doesn’t affect the image itself. A dictionary definition of dual is “composed or consisting of two people, items, parts, etc., together.”1 The signified image and the name, known as the signifier, both coexist together and can change without affecting the other.2 If I changed the image to a dog instead of a cat but left the signifier word as “cat”, the change in the image would not affect the textbook meaning of the English word for “cat.” Reversed, I could also change the signifying word for cat and change it to “racecar.” The image would still be of a cat, even if the word changed. The word has its own meaning and so does the image. So these two parts work independently of each other and are free from the boundaries of their counterparts.

1. Dictionary.com - http://dictionary.reference.com/browse/dual
2. Visible Signs by David Crow – page 18-19.
Agreement
The power of signs is a truly great. Marketers, designers, and even the common public use signs every day. When a new company adopts a new logo and displays it for the world to see, the public then accepts that sign. However, before the sign or symbol is accepted it has to be made known what the symbol is used for and what it truly represents.
Below is an image that I have created to represent my artistic work on the Internet. It is simple and monochromatic. I use this image as my avatar or artistic signature. When I first displayed this image on the Internet I gave an explanation along with it. I explained that the image would represent my work and me from here and moving forward. If I had stated that I wanted this symbol to represent a new form of bathroom tissue, most people would probably not understand it. However, they would be in agreement about the meaning of the symbol. My handle, or pseudonym, on the Internet is MiddayDreamer. This is why I chose a sheep. Among my peers, they have accepted the meaning and context of my sign – it is as if this simple image talks to the viewer and says “this was made by MiddayDreamer.”
It is fascinating that once we are told what an image or sign means we store its meaning in our minds, much like new vocabulary in a verbal language. This is what agreement truly is – everyone accepting a sign and agreeing on its meaning as a whole.
