Cunningham, Everton, and Murphy’s book is most relevant for practitioners, researchers, or anyone seeking to understand dark networks. Practitioners often worry that SNA is difficult to learn and comprehend, but through Cunningham’s easily accessible writing, anyone can understand and apply it after reading this book. Understanding Dark Networks would also have utility for teaching SNA to undergraduates, graduate, postgraduate students in many fields. The early chapters are accessible to anyone, but the last section requires baseline statistical knowledge. Social Network Analysis represents the future of dark network analysis, ranging from jihadist groups to gangs. All intelligence analysts and researchers would see their research value increase with an in-depth understanding of SNA. Understanding Dark Networks should be an essential read for any practitioner or security scholar interested in learning or furthering their knowledge of SNA.