Radio Frequency Identification (RFID) is a part of telecommunications. It enables wireless information exchange between objects, people, animals, and IT networks. An important aspect is that objects, people, or animals themselves become data carriers. There is a significant public interest in RFID, as changes in processes are expected to lead to changes in working conditions. The book describes current applications where these changes can be observed. Additionally, it provides technological fundamentals as well as a description of the possibilities and limitations of RFID. The reader is equipped to develop an RFID application from concept to practice and to assemble the right resources. The relevance of the topic and the corresponding high demand are evidenced by the release of the second edition after just one year.