"An exploration of the transformative impact of inventions and discoveries in communication. Features include fact boxes, sidebars, biographies, and a timeline, glossary, list of recommended reading and Web sites, and index"--Provided by publisher.
Content Note
Language and writing -- Alphabet -- Paper -- Movable type -- Printing press -- Lithography -- Telegraph -- Fax machine -- Typewriter -- Telephone -- Linotype -- Radio -- Television -- Handheld radio -- Satellite -- Internet -- Cellular telephone -- Digital television -- Smartphone -- Important dates in communication.