The book "Technological Calculation of the Reactor Unit" edited by T. In. Kremnev and other authors represent an important work in the field of nuclear energy and engineering. This publication will be of particular interest to those who seek a deeper understanding of the principles of design and operation of reactor units, as well as those engaged in research and development in this field. The book covers a wide range of topics related to the design and calculation of reactor systems. The authors offer readers not only theoretical foundations, but also practical examples, which makes the material accessible and understandable. It addresses key aspects such as thermodynamics, hydraulics, heat exchange and reactor safety. Each section is written taking into account current trends and technologies, which allows the reader to get up-to-date information necessary for work in this high-tech field. For students of technical universities, graduate students and young professionals seeking career growth in the field of nuclear energy, this book will become an indispensable assistant. It will also be useful to engineers and designers working in energy companies, as well as researchers engaged in the development of new technologies in the field of reactor construction. Readers interested in the topics of sustainable development and alternative energy sources will find in the book a lot of useful information about how modern reactors can contribute to reducing the carbon footprint and ensuring energy security. One of the key topics raised in the book is the safety of nuclear reactors. The authors elaborate on various aspects related to accident prevention and risk minimization. This makes the publication especially relevant in light of recent developments in the world related to nuclear energy. The book emphasizes the importance of an integrated approach to the design and operation of reactors, which is the key to their reliability and safety. The style of the authors is distinguished by clarity and logical presentation, which allows the reader to easily assimilate even the most complex concepts. In addition, the team of authors includes experts with many years of experience in the field of nuclear energy, which gives the book additional value. Readers familiar with the other works of these authors will notice that they maintain a high level of scientific rigor, while not forgetting the availability of material. If you are looking for literature that will help you understand the intricacies of reactor unit design, the "Technological Calculation of the Reactor Unit" will be an excellent choice. This book will not only expand your knowledge, but also inspire new ideas and research. It can serve as a basis for discussions at seminars and conferences, as well as a source of inspiration for future developments in the field of nuclear energy. Thus, the “Technological Calculation of the Reactor Unit” is not just a training manual, but a real find for everyone who is interested in nuclear energy and wants to be at the forefront of technology. Do not miss the opportunity to immerse yourself in the world of modern reactors and learn how they can change our future!