QR codes can be used for marketing by embedding various types of information like URLs, phone numbers, maps, and social media profiles. A mobile device with a camera and QR code reader can scan the code to access this embedded information. Many companies have implemented successful QR code campaigns in their advertising, putting codes in movie posters, packaging, print ads and more to drive traffic to mobile websites with videos, discounts and other offers. Several Indian brands have also used QR codes in magazines, newspapers and posters to promote their products and services.