Logos I found
Mcdonald, Lego, burgerking, sprite, pizzahut, domino pizza, nintendo, wendys, Kfc, oreo,fanta, JAl, NAsa, haribo, mercedez benz.
I think that they wanted to tell us that there are many companies around us , and we can easily remember what comapany it is by looking the logo. The image of the company is important and so the logo does.There also might be a lesson that how important the logo is.