The demise of Shelfie, a tool that allowed customers to link their print books to e-books, got me thinking about bar codes. Obviously, one method of linking print to its digital metadata is through ...

George Laurer had no idea his design would reach well beyond retail outlets when he created the black line and number sets known as the modern bar code while working for IBM as an engineer. Forty ...

Few objects in the world are more immediately recognizable than the bar code. After all, bar codes are all around us. They’re on the books we buy and the packages that land on our doorsteps. More than ...