Knowledge of Communication

Communication Knowledge is a popular-science title published by Liaohai Publishing House in its early years, edited or compiled by Ms. Wang Yuexia. It is one volume in a general-knowledge series, and its purpose is clear: to introduce non-specialist readers—especially young people or beginners interested in the development of communication technology—to the basic knowledge and evolutionary history of communications. In terms of structure, the book likely follows a chronological thread, from ancient beacon fires and relay postal systems to the telegraph and telephone of the modern era, and on to early forms of mobile communication and the Internet, tracing the revolutionary changes in how humans transmit information. This narrative approach helps readers build a coherent knowledge framework and understand the interaction between social needs and scientific principles behind technological innovation.

As a book published relatively early, its value must be assessed critically. On the one hand, it faithfully records the state of communication technology up to the time of publication (around the early 21st century); for readers who wish to understand communication technology in the “pre-digital era” or “early digital era,” it is a clearly organized historical index. Its explanations of basic principles are likely conceptual and diagram-based, avoiding complex mathematical formulas, which lowers the barrier to reading. On the other hand, because technology iterates rapidly, the sections on the “contemporary” and “future outlook” may differ considerably from today’s reality; discussions of 3G, 4G, or optical fiber communication, for example, now appear as historical milestones rather than cutting-edge developments. The core value of reading this book therefore lies not in obtaining the latest technological trends but in understanding the internal logic and historical context of communications development and cultivating a macro perspective on technological evolution.

The editor believes the book’s style should be plain and accessible, likely accompanied by illustrations, and suitable as a supplementary reader for general education. Its significance lies in sowing interest—bringing seemingly abstruse modern communications back to the simple starting point of humanity’s basic desire to overcome geographical distance and pursue connection. For readers who want to strengthen their foundation in the history of science and technology, or who are looking for parent-child popular-science reading, the book still has reference value.