2d-code reader “Cherky” sent in this picture of a large QR Code sticker in the window of the Canary Wharf branch of Barclays. It looks like it will be difficult to read with its reversed light and dark, and very little space around the code. It actually decodes to “Happy Christmas from all of us at Barclays” but I would be interested to know which QR Code readers can and can’t interpret the code. Please leave a comment below if it works for you (or not!).