The book "Voices of forest transport machines" by Andrei Zhukov is a deep and fascinating study devoted to the dynamics and mechanics of forest transport machines. This publication will be especially interesting to those who work in the field of forestry, engineering and ecology, as well as students and graduate students studying these areas. In his book, Zhukov raises important questions regarding the oscillatory processes that occur in forest vehicles. He focuses on how these fluctuations affect the efficiency of the equipment, its reliability and durability. The author not only describes theoretical aspects, but also offers practical solutions that can be applied in real conditions. This makes the book not only a scientific work, but also a practical guide for engineers and specialists working in this field. One of the key themes of the book is the impact of fluctuations on the performance of forest transport machines. Zhukov analyzes how various factors, such as design features, operating conditions and types of logging, can cause or amplify fluctuations. It also considers methods to reduce these fluctuations, which can significantly improve the efficiency of machines and reduce their maintenance costs. The book will be of interest not only to professionals, but also to those who are fond of technology and want to understand more deeply how forest vehicles work. Zhukov uses accessible language and illustrations, which makes the material understandable even for readers who do not have a special education. This makes Fluctuations in Forest Vehicles an excellent choice for students who are just beginning to study the topic, as well as for those who want to expand their knowledge in mechanics and dynamics. The author’s style is distinguished by clarity and logical presentation . Zhukov skillfully combines theory with practical examples, which allows the reader not only to learn the material, but also to see its application in real life. His previous work was also noted for its high level of scientific rigor and practical utility, which confirms his status as an expert in the field of forest transport technologies. The topics that Zhukov raises in his book are relevant not only for Russia, but also for the whole world, where forestry plays an important role in the economy and ecology. In the context of global climate change and the need for sustainable development of the forest sector, understanding of fluctuating processes in forest transport machines is becoming especially important. The book can serve as a basis for further research and development in this area. Thus, the “Witnesses of forest transport machines” is not just a scientific publication, but an important contribution to the development of forestry and mechanical engineering. It will be useful not only to specialists, but also to everyone who is interested in modern technologies and their impact on the environment. If you want to know more about how fluctuations affect the operation of forest transport machines and what solutions can be offered to optimize them, this book will be a real discovery for you.