What is Graphic Design?

I think that graphic design is art that is embedded into our daily lives. It's the design of images, logos, fonts, structures, and pretty much everything else that we see. Graphic design is used in a lot of products and buildings. I especially see it in logos. The designs on them help me recognize instantly what product they're representing. Such as the addidas mark or the HC that stands for Holland Christian. 
The designs that influence me the most are most likely the ones used for music artists. Each band has a different logo that is unique, and from their designs, I get other ideas for art.