OFDM, ultra-lean, mini-slots, beam-centric, …. these are just some of the many words and acronyms being used in conjunction with 5G and it is easy to get lost among all the terms and technology components. We believe our recently released book 5G NR: The Next Generation Wireless Access Technology, fills an important need for those interested in the recently released 5G NR standard. The book describes the standard in detail, both the technologies as such but also why specific technologies were decided to be included in the standard.