Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. The tags contain electronically stored information. Passive tags collect energy from a nearby RFID reader's interrogating radio waves.
In recent years libraries have been replacing the old fashioned barcode with RFID. Which has proven to enhance the flow in libraries, eliminating tedious tasks librarians had to perform. RFID allows multiple items to check-in and check-out within seconds, reducing queue time significantly and ease the process. The system enables seamless automation/operation in libraries.