The graphic designer is not an artist, rather he is a digital craftsman; but to be a good craftsman you need to have a lot of experience and know the tools.
I’ve been working in the visual arts for years and maybe the project that I prefer most are posters, but all graphical products are actually based on Gestalt and editorial cage, just like this site.
From brochures, to books, even a business card needs the right balance between the visual elements that compose it, because the text is also a graphic element!