The book "Fundamentals of Communication Technology" offers a comprehensive and clearly structured overview of the essential aspects of communication engineering. It covers fundamental topics such as information theory, the theory of signals and systems, as well as various technologies for message transmission. Readers gain insights into networks, high-frequency lines, antennas, and optical fibers. Additionally, it addresses optical transmission and reception elements, as well as the principles of analog and digital message transmission. The clear and understandable language makes the book a valuable resource for students and professionals who wish to engage with the fundamentals of communication technology.