The paper describes of Radio Frequency Identifications and its use in libraries. RFID is a combination of radio. Frequency-based technology and microchip technology. It is the technology that is slated to replace barcodes in library applications. It is Fastest, easiest, most efficient way to track, locate & manage library materials. The system also provides excellent privacy, security options and personalization of services for library users. RFID solution works through its parts.