Produced for the Book Exchange Colsubsidio in Columbia, these 2012 advertisements carry the tagline, "Come with a story and leave with another." Look closely and you'll see the optical illusion.

•  Snow White/Sherlock Holmes...

Advertising Agency: Lowe/SSP3, Colombia
Creative Chairman: Jose Miguel Sokoloff
Creative Director: Gustavo Marioni, Carlos Camacho
Art Directors: Andres Lancheros, Guillermo Siachoque, Sebastian Pelaez
Copywriter: Mario Lagos
Producer: Sonia Llanos
Account Director: Carlos Obando
Published: April 2012

• Two more ads included Little Red Riding Hood/Moby Dick and Harry Potter/Troy...

Very clever indeed!