The Hospital Aleman ad campaign really nails the difference in perception between parents and their children, or adults and kids in general. Whereas we grownups see things as they actually are since we have learned and experienced their true natures, children often see things as they wish them to be.
Conceived and executed by Buenos Aires-based ad agencies Del Campo Nazca and Saatchi & Saatchi, the Hospital Aleman ad campaign is incredibly simple. Done completely in white, only the items in the thought bubbles are colored so that even without the tagline, 'Kids see differently,' we understand the context of each poster.
I especially like the minimal quality of the Hospital Aleman ad campaign because it encourages imagination in order to fill in the blanks.