The book "Programming of numerical control systems "SINUMERIK 840D/810D" by Sergey Romanyuk is an indispensable guide for everyone who seeks to better understand and master modern technologies of numerical program control . In the conditions of rapid development of automation and high technologies, knowledge of CNC systems becomes not only useful, but necessary for specialists in the field of mechanical engineering, machine tool construction and automation of production processes. From the first pages of the book, the author immerses the reader in the world of complex but fascinating technologies related to the programming of SINUMERIK 840D and 810D systems. These systems are among the most popular and demanded in the industry, and understanding their work opens up new horizons for engineers and operators. Romanyuk explains how to properly configure and program these systems, focusing on the practical application of knowledge. The reader will be able to learn how to effectively use the capabilities of CNC to optimize production processes and improve the quality of products The book will be of interest to both novice specialists and experienced engineers who want to update their knowledge or master new aspects of working with SINUMERIK . systems. Students of technical universities, as well as teachers engaged in training in specialties related to automation and programming, will also find in this edition a lot of useful information. The author has carefully worked out the material to make it accessible and understandable to a wide audience, which makes the book an excellent teaching aid. The topics raised in the book cover a wide range of issues, ranging from basic programming to complex data processing algorithms. Romanyuk emphasizes the importance of understanding the principles of CNC systems, which allows the reader not only to learn how to program, but also to better understand the mechanisms behind these technologies. The book also addresses the issues of diagnostics and troubleshooting, which is an important aspect of working with high-tech equipment. The author's style is distinguished by clarity and logical presentation, which makes it easy to assimilate even the most complex concepts. Romanyuk uses many examples and illustrations, which makes the learning process more visual and fascinating. His experience in automation and programming allows him to share not only theoretical knowledge, but also practical advice that can be useful in real-world environments. In addition, it is worth noting that Sergei Romanyuk is the author of other well-known works in the field of automation and programming, which confirms his expertise and deep understanding of the topic. His books are often recommended for both educational institutions and professionals seeking to improve their skills. If you are looking for information about CNC programming, then “SINUMERIK 840D /810D” numerical control programming will be a real find for you. This book will not only expand your knowledge of modern technologies, but also inspire new achievements in your professional activities. Do not miss the opportunity to become an expert in the field of numerical software management by reading this fascinating and informative publication!