Book excerpt: An in-depth look at a century of radio history—and its continuing relevance in a radically changed world. A century after Marconi’s experimental transmissions, this book examines the history of radio and traces its development from theories advanced by James Clerk Maxwell and Heinrich Hertz to the first practical demonstrations by Guglielmo Marconi. It looks back to the pioneering broadcasts of the BBC, examines the development of broadcast networks in North America and around the world, and spotlights radio’s role in the Second World War. The book also features the radio programs and radio personalities that made a considerable impact on listeners during the “Golden Era.” It examines how radio, faced by competition from television, adapted and survived. Indeed, radio has continued to thrive despite increased competition from mobile phones, computers, and other technological developments. Radio Broadcasting looks ahead and speculates on how radio will fare in a multi-platform future.