Many people have been wondering about the odd squares appearing in our catalog and on library posters. These are called QR codes. If you have a smart phone/mobile device, simply get a QR reader app and scan the code. You will then be brought to a mobile webpage designed to give you more information.
QR codes can also encode phone numbers, addresses, URLs, text messages, etc.
You may also generate your own QR codes - one free generator is qrcode.kaywa.com