Most of us have probably seen QR codes, and that's because they offer many benefits, one of which is accessibility. QR code readers are now a standard feature on many modern smartphones, for one, and they're also cost-effective to generate. Thus, whether you want to access a restaurant menu, view product information, or share contact details, you're probably scanning a QR code these days. Some governments, including the Spanish government, also use QR codes as secure verification for online government procedures. Well, "QR" stands for "quick response," which is a fitting name considering how much time they save over typing URLs or other text.