The book "Numbered Methods in the Theory of Neutron Transfer" by Gury Ivanovich Marchuk and Vyacheslav Ivanovich Lebedev is a unique publication that immerses the reader in the world of complex mathematical models and numerical methods used in the field of physics and engineering. This work will be an indispensable tool for both undergraduate and graduate students, as well as for practitioners engaged in research in the field of neutron physics and radiation safety. The book focuses on the numerical methods used to solve the problems associated with neutron transfer. The authors consider in detail various approaches to modeling the processes occurring in neutron radiation environments, which is an urgent topic in the light of modern research in the field of nuclear energy and medical physics. The book covers a wide range of issues, ranging from the basics of transfer theory to complex algorithms that allow you to effectively solve practical problems. Who is this book intended for? First of all, it will be of interest to students and graduate students of technical and natural sciences, as well as researchers working in the field of physics, nuclear energy and radiation safety . Readers who are passionate about mathematical modeling and numerical methods will find many useful ideas and solutions in it. The book can also be useful to engineers and specialists involved in the design and operation of nuclear reactors, as well as the development of radiation protection technologies. The topics raised in the book cover not only theoretical aspects, but also practical applications of numerical methods. The authors discuss various approaches to solving transport equations, including the finite element method and the Monte Carlo method, which allows the reader to get a complete picture of existing tools and their capabilities. An important part of the book are examples of real-world problems, which makes the material more accessible and understandable. The style of the authors is distinguished by clarity of presentation and attention to detail, which allows the reader to easily assimilate complex concepts. Gury Ivanovich Marchuk and Vyacheslav Ivanovich Lebedev are experienced researchers who have made a significant contribution to the development of numerical methods in physics. Their previous work is also noteworthy, as they cover a wide range of topics related to mathematical modeling and its applications in various fields of science and technology. The book "Numbered Methods in the Theory of Neutron Transfer" not only deepens the reader's knowledge in the field of neutron physics, but also develops the skills of applying numerical methods to real problems. This publication will become a reliable assistant for all who seek to understand the complex aspects of neutron transfer and their impact on the environment. If you are looking for literature on numerical methods, transfer theory, nuclear physics or radiation safety, then this book will be a real find for you. It opens doors to the world of complex mathematical models and offers the reader unique tools for understanding and applying them. Do not miss the opportunity to immerse yourself in the fascinating world of numerical methods together with Marchuk and Lebedev!