General design is the science of how humanity will interact with a finished product.
Be it your newspaper, cellphone, car, the building in which you live, or any of the myriad of objects, tools, and environments with which humans interact on a daily basis, design is among the most important factors in determining how that interaction will play out.

Even the best products, if poorly designed, will cause tension and frustration in the user with every interaction.
The best design is one that makes the use of that object or space so natural and comfortable that the design itself might never be noticed.

Graphic design is a language unto itself. A language understood long before words are ever spoken.
It is the language of human feeling and the designer is an interpreter. With a good design, a great idea can be conveyed, a product sold, or a special message delivered... all in the first glance.