I love this mobile marketing campaign from Editoras, an online bookstore in Brazil! QR codes spread around the city allowed users to take a snapshot with their camera phones and view random messages about love or hate from Twitter.
A hard-copy book featuring the same QR codes on each page, sold-out in a short time. Viewers can flip through the book, take photos of the QR codes, and view new messages about love or hate.
Brilliant.
Watch the video to learn more: