The book "Engineering methods for determining the physico-chemical and operational properties of fuels" under the authorship of N. F. Dubovkina, L. C. Janowski, T. N. Shigabiyev and others, edited by Alemasov V. E. Garifullina F . A. , is an important work that immerses the reader in the world of modern technologies and methods of fuel analysis. This publication, published by the Kazan Scientific Center of the Russian Academy of Sciences, is aimed at specialists in the field of energy, chemistry and engineering, as well as undergraduate and postgraduate students seeking to deepen their knowledge in this key area. The book discusses in detail the methods used to determine the physico-chemical and operational properties of various types of fuels. The authors emphasize the importance of these characteristics for the efficient use of resources and ensuring environmental safety. The reader will be able to learn about modern approaches to fuel analysis, including both traditional and innovative methods, which makes this publication relevant for both practitioners and researchers. Who can be interested in this book? First of all, it will be useful to engineers working in the field of energy, as well as researchers engaged in the development and optimization of fuel technologies . Students of technical universities studying disciplines related to chemistry and energy will also find a lot of useful information in it. The book will become an indispensable guide for those who want to understand how the various physico-chemical properties of fuel affect its operation and efficiency. The topics raised in the book cover a wide range of issues, including the impact of fuel composition on its performance, methods for assessing quality and safety, and environmental aspects of using different fuels. The authors emphasize the need for an integrated approach to analysis, which allows not only to assess current properties, but also to predict the behavior of fuel in various operating conditions. This makes the book particularly valuable in the context of the modern challenges associated with the transition to cleaner and more sustainable energy sources. The style of the authors is characterized by scientific rigor and accessibility of the presentation, which allows the reader to easily assimilate complex concepts. N. F. Dubovkin and his co-authors are known for their work in the field of energy and chemistry, and their experience allows them to create high-quality and relevant materials. Their previous publications have also raised important issues related to energy efficiency and sustainable development, making their contributions in this area particularly relevant. The book “Engineering methods for determining the physico-chemical and operational properties of fuels” is not just a collection of data, but a real find for anyone interested in modern technologies in the field of energy. It opens new horizons in understanding the processes taking place in the fuel industry and offers the reader unique tools for analysis and evaluation. If you are looking for information on how to choose the right fuel for your needs or want to understand its properties, this publication will be your reliable assistant. Do not miss the opportunity to expand your knowledge and deepen your understanding of the most important aspects of fuel energy with this book. It will be an indispensable source of information for all who seek to be one step ahead in the rapidly changing world of energy technology.