QR codes were created in 1994 as a two-dimensional barcode that can be scanned by smartphones to retrieve text, URLs, or other data. While initially used for inventory tracking, QR codes saw early adoption in Asia and Europe as a way to access web content or information without typing on phones lacking full keyboards. Over time, proprietary codes also emerged that store data in the cloud rather than within the code itself. When considering using QR or other two-dimensional codes, marketers should evaluate whether the codes simplify or complicate the user experience and whether the intended audience is likely able and willing to use them. Emerging technologies like near-field communication may one day make codes like QR obsolete as ways to easily share contact and web information with