QR codes consist of black modules arranged in square
patterns on a white background. “QR” stands for quick response: the contents
can be decoded at high speed. QR codes have been around since 1994, but have
until now been used mostly for industrial applications. Their usefulness in
marketing is starting understood. It is free and easy to make!
Advantage:
There is no need to write vital details down. A simple scan
captures the desired information.
An example:
