The book "Fiber-optic communication lines in computer networks and telecommunications", edited by Y. and . Sinitsyna and with the participation of authors C. P. Whirlpool and W. About. Samoylova, is a unique and relevant study devoted to one of the most advanced technologies in the field of communication and data transmission. With the rapid development of information technology and the growing need for high-speed information transmission, this book is becoming an indispensable source of knowledge for professionals, students and anyone interested in modern telecommunications. The main theme of the book is fiber-optic communication lines, which become the basis for the creation of high-speed and reliable computer networks. The author's team deeply analyzes the principles of operation of optical fibers, their design, as well as the technologies used for data transmission. The reader will be able to learn about the different types of fibers, their characteristics and application in real conditions. The book covers both theoretical aspects and practical examples, making it useful for both beginners and experienced professionals. Who can like this publication? First of all, it will be interesting for students of technical universities studying in specialties in the field of communication, computer science and computer technology . The book will also be useful to engineers and specialists working in the field of telecommunications, as well as to anyone who seeks to expand their knowledge of modern methods of data transmission. If you are interested in the latest technologies, want to understand how modern networks function and what prospects the use of optical fibers opens up, then this publication will be a real find for you. The topics raised in the book are relevant and important in light of the current challenges facing the telecommunications industry. In the context of globalization and digitalization, when the speed and quality of data transmission become critical, fiber-optic technologies are the key to solving many problems. The authors discuss not only the technical aspects, but also the economic, social and environmental consequences of the introduction of these technologies, which makes the book multifaceted and rich. The style of the authors is distinguished by clarity and accessibility of the presentation, which makes it easy to assimilate even the most complex concepts. Yu. and . Sinitsyn, known for his work in the field of communication, brings deep knowledge and practical experience to the text, as well as the ability to explain complex things in simple language. C. P. Whirlwinds and W. About. Samoilov, in turn, complement the study with his unique views and approaches, which makes the book diverse and multifaceted. This book will be an excellent addition to the library of any specialist in the field of telecommunications. It not only enriches knowledge, but also inspires new ideas and projects. If you are looking for information on how fiber-optic technologies can change the future of communication, or want to learn about the latest advances in this field, this book will be your reliable guide. In conclusion, “Fiber-optic communication lines in computer networks and telecommunications” is not just a textbook, but a real encyclopedia of knowledge that will help you understand the complex but fascinating field of fiber optics. Do not miss the opportunity to immerse yourself in the world of modern technologies and discover new horizons in the field of communication!