Jonathan Mak's poster unmistakably conveys the Coca-Cola brand without any need to show a logo

A clear and successful visual identity system relies on rigorous and disciplined use of a coherent color palette, a typeface applied so consistently that it becomes associated with your brand, and regular use of imagery. When well executed the logo itself becomes redundant. Here’s a survey of five UK brands whose ID is so strong that they work even when their logo is nowhere in sight.
Article: 5 Brands So Strong They Don't Need a Logo