Adeniran, T.C.Zubairu, J.H.Onidare, S.O2018-12-182018-12-182018-12International Journal of Information Processing and Communicationhttp://hdl.handle.net/123456789/1408For many years, libraries were operated manually which made the job of the Librarian tedious and slow. However, in recent years, modern life has increased the demand for reliable communication systems and internet technologies. Activity such as e-learning has forced the global educational institution to adopt an automated library, the Radio Frequency Identification (RFID) system was introduced and also, the need for tracking and identification of library resources. In this paper, an RFID-based detection system was used. It involves the use of radio frequency and microchip technology, alongside other components to identify books leaving the library efficiently. The RFID tag used is the passive read/write tag in the 13.56 MHz unlicensed Radio Frequency band, due to its affordability and ease of implementation. This paper seeks to enlighten library users, such as administrators about the importance of RFID technology in the improvement of library management. The proposed system consists of the antitheft security gate, used to detect, if a library book has been properly checked out and a database (middleware) to know which book or material was taken or is about to leave. The result showed that within the acceptable range of 40 mm, the RFID reader works efficiently in theft detection. This range can extend for large-scale deployment.enArduinoLibraryRadio Frequency Identification (RFID)ReaderSecurityTagsArticle