The book "Study of stability of electric power systems on the computer" by E. In. Calentionok is a fascinating and deep immersion in the world of electricity, which will be a real find for students, graduate students and specialists in the field of energy systems. In this work, the author shares his knowledge and experience, offering readers a unique look at the most important aspects of the sustainability of electric power systems, as well as modern methods of analyzing them with the help of computing technologies. The main theme of the book is the study of the sustainability of electric power systems, which is a key aspect for ensuring the reliability and efficiency of energy networks. Calentionok considers how various factors, such as loads, emergency situations and changes in the structure of the system, can affect its stability. Readers will be able to learn about modern modeling and analysis methods that allow them to predict the behavior of systems in different conditions, as well as how computer technology helps in this process. The book will be of interest not only to specialists in the field of electricity, but also to everyone who is interested in modern technologies and their application in real conditions. Students of technical universities, graduate students and young scientists will find in it useful knowledge and ideas for their research. Engineers and practitioners will be able to use this knowledge to improve existing systems and develop new solutions. The book can also attract the attention of those interested in sustainable development and the environmental aspects of energy. One of the strengths of the work is the style of the author. E. In. Calention has the ability to explain complex technical concepts in an accessible and fun way. His approach combines scientific rigor and practical focus, which makes the material understandable even to readers who do not have deep knowledge in the field of electricity. The author actively uses examples from real practice, which helps readers to better understand the theoretical aspects and their application in life. The book raises important topics such as the reliability of energy systems, the impact of climate change on energy, and the need to transition to more sustainable and environmentally friendly energy sources. These issues are becoming increasingly relevant in light of the global changes and challenges facing humanity. Readers will be able to think about how technology can help solve these problems and how each of us can contribute to sustainable development. In addition, the Computer Power Systems Sustainability Study is part of the wider library of E. works. In. Calentionok, who is also known for his research in automation and control in the electric power industry. His other works, such as “Automation of Processes in the Electric Power Industry” and “Modeling of Energy Systems”, can supplement and deepen the knowledge gained from this book. In conclusion, the book “Study of the stability of electric power systems on the computer” is not just a textbook, but a real find for everyone who wants to understand how modern electric power systems work and how they can be made more sustainable. Readers interested in technology, sustainability and the future of energy will find in this work a lot of useful information and inspiration for their own research and projects.