The book is the authoritative reference on RFID and WSNs. It covers a broad range of topics that includes everything from the basics to insights into future directions, this cutting-edge book reviews architectures, protocols, standards, security, and applications. With sections devoted to each individual element, the text starts by covering the tags, readers, and middleware associated with RFID. Next, it provides insights into the routing, medium access control, and cross-layer optimization of WSNs. The third section focuses on the integration of RFID and WSN, addresses contemporary challenges, and illustrates concepts and applications with practical examples.