The term graphic design refer to a number of artistic and professional disciplines which focus on visual communication and presentation. Various methods are used to create and combine symbols, images and/or words to create a visual representation of ideas and messages.
A graphic designer may use typography, visual arts and page layout techniques to produce the final result. Graphic design often refers to both the process (designing) by which the web page is created and the products (designs) which are generated.
There is variety of tool for achieving this that we use like, Adobe PhotoShop, Adobe Illustrator, Macromedia FLASH, Corel Draw etc.