QR Codes Are Making a Comeback (and Why It Matters)

You know QR Codes? Those boxes of black-and-white squares you see on posters, on the backs of business cards, and in the drive-through windows at McDonald’s? They are free to create, simple to use, and suddenly, they are everywhere. QR Codes (short for “quick response” codes) have been around for nearly two decades, although they [...]