QR Code and How It Works

Think of QR Codes as a special two-dimensional bar codes that can hold various kinds of information: a secret URL, text message, image, etc. Using a camera phone you can scan the the QR Code and get the special message.

How it works on I Left NY:

How the QR codes work

If you don't have the QR Code decoding software already built into your mobile device or can't get it (search for "QR code decoder your_phone_name" or something like that), you can try some of the online decoders:

BeeTag

ZXing Decoder Online

Happy QR-coding!

It's heartbreaking to leave New York

QR Code and How It Works