This illusion demonstrates how
relies on symbols more than
advertising copy or slogans.
Practically everyone in the world knows what kind of drink they can order when they see this sign. But appearances can be deceptive. Why is this illusion powerful? Some say it's because the ingredients are twice as strong.
See also the corporate-sponsored version: Coca-Cola optical illusion can>>
The source for this faux Coke image was online, but I couldn't find the maker.