Have you ever wondered what this is?
This is a QRCode (“QR” stands for Quick response). If you have a mobile phone (and who doesn’t – really), and you have an app for a QRCode reader (e.g. from Scanlife.com), you can scan it, and your device will load whatever the target of the code is.
You can direct it to websites, including facebook pages. But you can also direct it to load a phone number.
Try it out if you’re curious.