What is a QR code?
A QR code (quick response code) is a unique barcode which can be read by many camera phones.
When you scan or read a QR code with your iPhone, Android or other camera-enabled smartphone you can access a link or web page from your phone or store it to read later.
This gives a simpler way to share web address links without relying on accurate typing or spelling over the phone.
How do I scan a QR code?
If you have a smartphone there a number of different barcode scanner applications such as Red Laser, Barcode Scanner and QR Scanner that can read QR codes. The majority of these are completely free, and all you have to do once you install one is to use your phone's camera to scan the barcode, which will then automatically load the content.