The book "Probabilistic Logic Networks" offers a comprehensive introduction to probabilistic logic networks (PLN) and their application in uncertain reasoning. The authors, Ben Goertzel, Matthew Iklé, Izabela Freire Goertzel, and Ari Heljakka, present a systematic and pragmatic approach to processing uncertain data and conclusions. They discuss the fundamental principles underlying the development of PLN and explain the chosen foundations as well as knowledge representation within this framework. Additionally, inference rules and truth values are introduced, and PLN is contextualized within other approaches to uncertain inference. The book is aimed at professionals and students interested in the theoretical and practical aspects of uncertain logic and its applications.