i think coca cola have a good use of graphic design, their logo is easy to read,  has a unique style to it, it is easily recognizable and couldn't really get it mixed up with another brand. The colour makes it easy to picture the logo in your brain and if you saw it u would know it was coca cola.

Nike has a strong visual identity, when you see the logo it makes you think of sport or fashion, world widley known, they have used a tick that everyone recognizes as Nike.

 

 Kelloggs are well recognised aswell but for making well known serials such as Corn Flakes, Crunchy Nut and Coco Pops. when u see kelloggs you automatically trust the product because the company is so well reconizable.