What a well-thought out concept, created by the Spanish office of the Grey Group. This campaign, created to confront people with the reality around child abuse (along the international Day Against Child Abuse), has a brilliant twist. By using a smart printing technique (&amp;#8216;lenticular printing&amp;#8217;), the billboard ads are different depending on the height from which you see it. An average adult sees one poster, but the child (seeing the poster from a lower height) will see a different call to action: &amp;#8220;If somebody hurts you, phone us and we&amp;#8217;ll help you&amp;#8221; (with a phone number).&nbsp;
Source: Co.Create
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