WHAT IS GRAPHIC DESIGN?
Graphic design, alsoo known as communication design, is the art and practice of planning ans projecting ideas and experiences with visual and textualcontent. The form of the communication can be physical or virtual, and may include images, words, or graphic forms.
WHAT IS IT USED FOR?
It can be for any purpose, whether commercial, educational, cultural or political.
It can be: posters, advertisements, packages, other printed media, graphics, information visualizations, motion graphics, books, magazines, catalogues, websites,
museum displays, branding, business card, sign, logo, design for web and mobile, mobile apps and other digital products.
source: http://www.aiga.org/what-is-design/