QR codes provide opportunities for engaging consumers on demand by linking to webpages, emails, phone numbers and SMS messages. As mobile phone usage increases and QR readers are preloaded on more phones, QR codes are becoming a popular way for marketers to drive consumers from print to digital content. Examples of QR code campaigns include those run by the NBA, retailers like Best Buy and Calvin Klein, food companies like McDonald's, and magazines like Lucky that allow readers to easily access additional online content through their codes.