The book "Linear digital filters and methods of their implementation: analysis of quantization errors by level" by A. Vereshkina is a deep and fascinating study that immerses the reader in the world of digital signal processing. This work will become an indispensable assistant for students, graduate students and specialists in the field of electronics, telecommunications and information technology, seeking to expand their knowledge of digital filters and their application. In his book, Vereshkin examines in detail the principles of linear digital filters, their classification and methods of implementation. It not only describes theoretical aspects, but also offers practical recommendations that will help readers better understand how to apply this knowledge in real-world tasks. Particular attention is paid to the analysis of quantization errors, which is a critical aspect in the design and implementation of digital systems. The author explains how quantum errors can affect the quality of signal processing and suggests methods for minimizing them, which makes the book especially relevant for engineers and developers. The book will be interesting not only for those who already work in the field of digital signal processing, but also for those who are just starting their way in this fascinating field. Students of technical specialties, graduate students and even teachers will find in it a lot of useful ideas and examples that can be used in the educational process. In addition, it will be useful to professionals who want to update their knowledge and get acquainted with modern approaches to the implementation of digital filters. The topics raised in the book cover a wide range of issues related to digital signal processing. Vereshkin discusses not only theory, but also practical aspects, which makes his work especially valuable. He analyzes the influence of various factors on the quality of signals, considers optimization methods and shares his experience in the development of effective algorithms. This makes the book not just a tutorial, but a real guide to the complex but fascinating world of digital signal processing. Style A. It is clear and easy to use........................................ He is able to explain complex concepts in simple language, which makes his books understandable even for those who are just beginning to get acquainted with the topic. It is important to note that the author is not limited to theoretical calculations - he actively uses examples from practice, which allows the reader to better absorb the material and see its application in real life. In addition to “Linear digital filters and methods of their implementation”, Vereshkin is the author of a number of other works on digital signal processing and communication systems. His research and publications have gained recognition in scientific circles and have become the basis for many dissertations. This confirms the high level of expertise of the author and his contribution to the development of this field. If you are looking for a book that will help you understand the intricacies of digital signal processing, “Linear digital filters and methods for their implementation: analysis of quantization errors by level” will be an excellent choice. It will not only enrich your knowledge, but also inspire new ideas and projects. Read, study and apply the knowledge gained in practice - and you will definitely succeed in this exciting area!