Not-so-well-known online book retailer wants to become more-known. Brazilian ad agency comes up with an extensive campaign that includes technology, some guerrilla stuff, social media, viral marketing and a cool product too.
This is ‘The Living Book’, a book that’s written by people and that changes on a weekly basis. 

The book consists solely of QR codes (those weird matrix-type square things that are being used for mobile tagging). And when you take a picture of these codes with your mobile phone, each one will translate into a new bit of content every 7 days. 

So far so cool, but it doesn’t stop there. The bits of ‘content’ are actually Twitter messages that include the words ‘love’ or ‘hate’. Great gimmick, nice campaign, lovely way to integrate UGC, interesting technology. And apparently, the book sold out in no time.

Creative Review has a nice write-up about the whole thing.

Does anyone have any other good examples of QR technology being used creatively?