"The Theory of Difference Circuits" is an outstanding work written by A. A. Samara, which immerses the reader in the world of numerical methods and mathematical modeling . This book will become an indispensable assistant for students, graduate students and specialists in the field of applied mathematics, physics, engineering and computer science. It examines the basis of difference schemes, which are an important tool for solving differential equations, which makes it relevant for both theorists and practitioners. The book covers a wide range of topics, ranging from the simplest difference schemes to more complex methods that allow you to effectively solve problems arising in various fields of science and technology. A. A. Samaran masterfully explains how to apply difference schemes to numerical solutions of partial differential equations, which is a key aspect in the modeling of physical processes. The reader will be able to learn about such important concepts as stability, convergence and accuracy of difference schemes, as well as about various methods of their analysis and optimization. A feature of the book is its accessible style of presentation, which allows even those who are not experts in the field of numerical methods to easily assimilate the material. The author uses many examples and tasks, which makes the learning process not only effective, but also fascinating. Each chapter of the book includes practical tasks, which allows the reader to consolidate the knowledge gained and apply it in practice. This book will be especially interesting for those who study applied mathematics and physics, as well as those who work in the field of computer modeling. Students of technical universities, graduate students and young scientists will find in it useful tips and recommendations that will help them in their scientific and practical activities. It can also attract the attention of professionals involved in the development of software for numerical modeling, since the book discusses not only theoretical aspects, but also practical approaches to the implementation of difference schemes on the computer. The topics raised in Difference Circuit Theory cover not only mathematical and computational aspects, but also philosophical issues related to the accuracy and reliability of numerical methods. A. A. Samarsky raises important questions about how mathematical models can reflect reality and what limitations they have. This makes the book not only a textbook, but also a source for deep reflection on the role of mathematics in the modern world. Style A. A. Samarsky is distinguished by clarity and logic, which allows readers to easily follow his thoughts. His other well-known works, such as Numerical Methods and Applied Mathematics, are also noteworthy and may be useful in addition to The Theory of Difference Circuits. Samarsky is an author who knows how to make complex things accessible and understandable, and this book is a vivid example of this. If you are looking for a book that will help you immerse yourself in the world of numerical methods, understand their theoretical foundations and learn how to apply them in practice, The Theory of Difference Circuits A. A. He will be your faithful companion. Do not miss the opportunity to expand your knowledge and skills in mathematics and modeling, discovering this unique work