![](https://article-imgs.scribdassets.com/2spximl9kwajt4zi/images/fileD4BTCHG0.jpg)
Q R codes, those two-dimensional barcodes that whisk you off to a web page when you scan Q them with your phone, have had a chequered history. Invented in the ’90s and used extensively in Japan, their belated introduction to the rest of the world was short-lived before heading for apparent extinction. You’ll probably have noticed, though, that they’re now enjoying a resurgence in popularity. Fuelled by their use during the Covid pandemic – remember having to scan QR codes to enter restaurants and pubs? – we’re now seeing them everywhere as everyone has been trained up to use them.
If you own a business, putting a code on your business card or brochure makes it far