Abstract: RFID Technologies & Internet of ThingsThe next-generation of the Internet aims to integrate heterogeneous wireless technologies and low-cost embedded devices in order to contribute to assert the concept of Internet of Things (IoT).The main idea behind the IoT concept is to have worldwide interconnected objects, each one individually discovered and addressed as a resource in the network.In this new scenario, the Human-to-Machine paradigm (H2M) is increasingly moving toward the new Machine-to-Machine (M2M) paradigm, so leading to an improvement of several aspects in everyday life.Certainly, Wireless Sensor Network (WSN) and Radio Frequency Identification (RFID) are playing a fundamental role as IoT enabling technologies.A very intersting research topic is focused on the integration between RFID and WSN in order to spread smart environments able to capture, in a pervasive way, all useful information from the real world.This special issue on RFID Technology and Internet of Things of the JOURNAL OF COMMUNICATIONS SOFTWARE AND SYSTEMS aims to report on the recent advancement and developments in various aspects of the IoT such as RFID, NFC, tracing and tracking systems, supply chain, security in IoT, WSN, integration between RFID and WSN, and so on.Fifteen papers were submitted and ten of them have been recommended for publication based on the standard reviewing process.