The book "Calculated models of ensuring the operability and efficiency of transport and technological machines in operation" edited by Zazikina A. In. , Repina S. In. and mile B. P. is a unique publication that will become an indispensable assistant for specialists in the field of transport technologies, engineers, students of technical universities and anyone interested in improving the efficiency of machines in operation In today's world , where technology is rapidly evolving, and machine performance and reliability requirements are increasing, This publication offers an in-depth analysis and practical recommendations on calculation models , which help to ensure the performance and efficiency of transport-technological machines. The authors, with considerable experience in their fields, share their knowledge with readers, which makes the book not only a theoretical manual, but also a practical guide. The book covers a wide range of topics, including methods for assessing the performance of machines, analyzing their effectiveness in various operating conditions, as well as developing models that allow predicting the behavior of machines in various scenarios. The reader will find here both classical approaches and modern methods based on the use of computer technology and mathematical modeling. This makes the book relevant to both practitioners and researchers working in the field of transport technology. The topics raised in the book concern not only technical aspects, but also economic ones, which makes it especially valuable for managers and managers who make decisions about the purchase and operation of machines. The authors emphasize the importance of integrating calculation models into management processes, which allows to significantly increase the level of efficiency of enterprises. The book will be of interest not only to professionals, but also to students studying in specialties related to transport and technology .. It can become the basis for coursework and thesis, as well as useful reference material for preparing for exams . Students will be able not only to deepen their knowledge, but also to obtain practical skills that will be useful to them in their future career. The style of the authors is characterized by accessibility and clarity of presentation, which allows even complex technical aspects to be presented in an understandable form. This makes the book attractive to a wide audience, including those who are just starting to get acquainted with the topic. The authors use many examples from real practice, which helps readers to better understand the material and see its application in life. Zazykin A. In. , Repin C. In. and Chmil V. P. well-known specialists in the field of transport technologies, and their previous work has already won recognition among professionals This book continues their tradition of providing quality and relevant content that meets the industry’s modern requirements. If you are looking for literature on design models, machine efficiency, transport technologies or just want to deepen your knowledge in this area, then “Design models for ensuring the performance and efficiency of transport and technological machines in operation” will be an excellent choice. It will not only enrich your professional luggage, but also help you become more competitive in the labor market. Do not miss the opportunity to get acquainted with this important book, which opens new horizons in understanding the work of transport and technological machines and their effective use in modern conditions.