The book "Collection and adjustment of optical-mechanical devices" by N. Yelnikova is an indispensable resource for anyone interested in optics, mechanics and exact sciences. It discusses in detail the principles of assembling and tuning optical-mechanical systems, which makes it relevant both for students of technical universities and for professionals in the field of optics and mechanics. In his work, Yelnikov shares not only theoretical knowledge, but also practical recommendations that will help readers understand the intricacies of finishing and assembling various optical devices. The book covers a wide range of topics, ranging from the basics of optics to the complex mechanisms used in modern devices. You will learn how to choose the right components, how to carry out the finishing and what tools are needed for this. Each chapter is filled with examples and illustrations, which makes the material accessible and understandable even for those who are just starting their way in this area. This book will be of particular interest to undergraduate and graduate students studying physics, mechanics and optics, as well as engineers and technicians working in the field of optical instrumentation development and maintenance. If you are passionate about the exact sciences and want to deepen your knowledge of how optical-mechanical systems work, the “Assembly and adjustment of optical-mechanical devices” will become a real guide for you. The topics raised in the book go beyond simply describing the processes. Yelnikov touches on important aspects, such as the impact of assembly quality on the accuracy and reliability of devices, as well as modern trends in the development of optical systems. Readers will be able to learn about the new technologies and techniques that are being applied in this field, making the book relevant and useful for those who want to stay at the forefront of science and technology. The author's style is distinguished by clarity and accessibility, which makes it easy to assimilate even complex concepts. N. Yelnikov is an experienced specialist who is not only a theorist, but also a practitioner, which gives his work special value. He is also the author of other well-known works on optics and mechanics, which confirms his authority in this field. The book “Collection and adjustment of optical-mechanical devices” will be useful not only for those who work with optical devices, but also for everyone who is interested in the exact sciences. It will be an excellent addition to the library of both students and professionals seeking to improve their skills and expand their knowledge. If you are looking for information on how to properly assemble and configure optical-mechanical systems, this book will become your reliable assistant. Do not miss the opportunity to immerse yourself in the world of optics and mechanics with H. Elnikov . This book is your key to understanding the complex processes and technologies behind the creation of high-precision optical devices. Read, learn and apply knowledge in practice, and you will see how your skills and understanding of this fascinating field of science will grow.