The book "Methodical manual on the course "Telecommunication Systems" for students of the specialty "Information Technology Software" by A. A. Ivaniuka is a unique and valuable resource for students studying one of the most relevant and dynamically developing fields of knowledge. With rapid progress in the field of information technology and telecommunications, this manual becomes an indispensable assistant for future professionals seeking to master complex concepts and practical skills in this area. The manual covers a wide range of topics related to telecommunications systems, including the basics of data transmission, network architecture, communication protocols, as well as modern technologies such as 5G and the Internet of Things. Author, A. A. Ivanyuk, with extensive experience in this field, shares his knowledge and practical recommendations, which makes the material accessible and understandable for students. The book is written in a lively and accessible style, which makes it easy to absorb even the most complex concepts. Who can like this manual? First, it is intended for students studying at the faculties of information technology, software and related specialties . However, in addition to students, the manual will also be useful to practitioners who want to update their knowledge of modern telecommunications systems. The book will also be of interest to teachers who are looking for high-quality teaching materials for their courses. The topics raised in the book are highly relevant in light of current challenges and trends in telecommunications. In the context of globalization and digitalization, understanding the principles of telecommunication systems is becoming an integral part of professional training of specialists. The book focuses on the importance of integrating theoretical knowledge with practical skills, which is especially important for students seeking a successful career in the IT field. The style of the author is distinguished by clarity and logical presentation, which allows the reader to easily follow the course of thought and absorb the material. A. A. Ivanyuk is also known for his other work in the field of information technology, where he addresses various aspects of programming and software development. His experience and in-depth knowledge in this area make each page of the manual a valuable source of information. The book “Telecommunication Systems Methodology” not only provides theoretical knowledge, but also includes practical tasks that will help students to consolidate the material and develop the skills necessary for successful work in the field of telecommunications .. This guide will become a reliable companion on the way to professional development and will help readers confidently step into the world of technologies that change our society. If you are looking for a high-quality methodological guide on telecommunications systems that combines theory and practice, then the work of A. A. Ivanyuk will be a great choice . Do not miss the opportunity to immerse yourself in the world of modern technologies and gain knowledge that will open up new horizons in your career!