“Training manual for the implementation of the course project Design of the intercity fiber-optic transmission line n” is a unique and indispensable guide for students and professionals seeking to better understand the intricacies of designing modern telecommunications systems. The book, created by a team of authors, contains all the necessary knowledge and practical recommendations that will help the reader not only to successfully complete the course project, but also to master the key aspects of the design of fiber-optic transmission lines. The book covers a wide range of topics, ranging from the basics of fiber optics to the nuances of designing and operating long-distance communication lines. The authors offer readers detailed explanations of the principles of fiber-optic systems, including the physical basis of light transmission, the choice of components and technologies, as well as methods of calculation and modeling. Each section of the manual is written taking into account current requirements and standards, which makes it especially valuable for technical students, engineers and anyone interested in modern communication technologies. This manual will be especially useful for university students studying in the fields of communication, computer science and electronics. It will also be a great help for graduate students and young professionals who want to deepen their knowledge in the field of telecommunications systems design. Due to its accessible presentation language and clear structure, the book is suitable for both self-study and use in the educational process. The topics raised in the manual cover not only technical aspects, but also design issues taking into account economic feasibility, which makes it relevant in the current market conditions. The authors emphasize the importance of designing with the future needs of users and the development of technologies, which allows readers not only to perform tasks, but also to develop critical thinking and analysis skills. The style of the authors is distinguished by clarity and logical presentation, which makes it easy to assimilate even the most complex concepts. Each section is accompanied by examples and tasks, which makes the learning process more interactive and fun. This manual not only educates but also inspires further research in the field of fiber optics and telecommunications. If you are looking for books on designing fiber-optic systems, you may be interested in other works, such as “Fiber-optic communication lines” or “Modern data transfer technologies”. These works will also help you deepen your knowledge and broaden your horizons in the field of telecommunications. In conclusion, the “Training manual for the implementation of the course project Designing an intercity fiber-optic transmission line” is not just a textbook, but a storehouse of knowledge that will become a reliable assistant for all who strive for success in the world of high technology . Do not miss the opportunity to get acquainted with this manual and discover new horizons in the design and operation of fiber-optic systems!