A few weeks ago I boarded a plane for the first time in 20 months. Heading out to visit my Colorado family, I was surprised to discover that QR codes, which were popular in 2010 or so and old news …
QR codes
4 Ways Authors Can Use QR Codes
Blogger: Janet Kobobel Grant
Location: Books & Such main office, Santa Rosa, Calif.
If you don’t know what a QR code is, scroll down to the end of this post to take a peek. QR (which stands for “quick response”) …