The book "Non-aggressive water regimes of steam boilers" by P. Akolsina is an indispensable work for specialists in the field of energy and heat engineering, as well as for students and graduate students studying these disciplines. It addresses the critical aspects of steam boilers, which are key elements in heat and power supply systems. The author, who has extensive experience in this field, shares his knowledge about non-aggressive water regimes that help to avoid corrosion and other negative consequences associated with the use of poor-quality water in boilers. The book explains in detail how to properly select water modes to ensure the durability of the equipment and its effective operation. This is especially true for enterprises where the reliability and safety of boilers are of paramount importance. The book will be of interest not only to professional engineers and technicians, but also to students of technical universities who want to deepen their knowledge in the field of thermal energy. It can also attract the attention of researchers engaged in research in the field of water regimes and their impact on the operation of steam boilers. P. Acolzin uses an accessible and understandable language, which makes the material available to a wide audience, including those who are just beginning their journey in this complex but fascinating field. The topics raised in the book cover a wide range of issues, ranging from chemical processes occurring in boilers to practical recommendations for the selection and preparation of water. The author focuses on the importance of water quality control, which allows to significantly reduce the risks associated with the operation of steam boilers. In addition, the book discusses modern methods of analysis and diagnosis, which will help specialists to identify problems in a timely manner and prevent emergency situations. Style P. Akolzin is distinguished by clarity and logical presentation, which allows readers to easily assimilate complex technical concepts. His previous work has also earned recognition in the professional community, which confirms his status as an expert in the field of thermal energy. The book "Non-aggressive water regimes of steam boilers" is a logical continuation of his research and practical experience. If you are looking for information on how to optimize the operation of steam boilers and avoid expensive breakdowns, this publication will be a real find for you. Readers interested in the topics of sustainable development and energy efficiency will also find the book a lot of useful. In the face of modern challenges related to ecology and resource conservation, knowledge of non-aggressive water regimes is becoming especially relevant. Thus, “No-aggressive water regimes of steam boilers” is not just a training manual, but a whole guide to the world of effective and safe use of steam boilers. By reading this book, you will gain not only theoretical knowledge, but also practical skills that will help you in your professional activities. Do not miss the opportunity to get acquainted with this valuable work, which will open up new horizons in the field of thermal energy .