Near Field Communication (NFC) is a wireless technology that uses radio frequency to enable data exchange between a reader and an NFC target or terminal over a very short distance of a few centimeters. This communication is made possible by specific chips integrated into the transmitters. NFC-enabled phones, launched starting in 2011 by some service providers, are expected to become the most common readers in the future. NFC applications are varied and offer numerous possibilities in the commercial and marketing sectors. For more information, you can consult dedicated online resources. For a didactic approach to NFC, a practical application example is available on the website mentioned. In addition, a video presentation illustrates another use case for this technology.