Precisely how and why radio developed as it did is a fascinating story, told with authority in this book. Of interest to both the specialist and the general reader, this history concentrates on the years between 1920 and 1930 in the United States when radio was rapidly growing and changing. It covers all important areas in the development of the radio industry: business, programming, regulation, finance, the manufacturing of radio sets and equipment, the development of technology, the rise of networks, and the flowering of radio as a medium of entertainment and news.