Thanks to Gloria of Little White Whale for spotting this campaign by Colombian ad agency LOWE/SSP3 for the Colsubsidio Book Exchange. To highlight the tagline - "come with a story and leave with another" - each minimalist illustration hides the shape of a second literary character within the lines of the first. Just shift your vision. Can you see them?
Answers after the jump...
Snow White/Sherlock Holmes
Harry Potter/The Trojan Horse
Little Red Riding Hood/Moby Dick
It's just like that old woman/young woman graphic, but so much more clever.