Barcode

Object Lessons is a series of short, beautifully designed books about the hidden lives of ordinary things.

Barcodes are about as ordinary as an object can be. Billions of them are scanned each day and they impact everything from how we shop to how we travel to how the global economy is managed. But few people likely give them more than a second thought. In a way, the barcode's ordinariness is the ultimate symbol of its success.

However, behind the mundanity of the barcode lies an important hi...