"An Introduction to the History of Communication: Evolutions and Revolutions provides a comprehensive overview of how human communication has changed and is changing. Focusing on the evolutions and revolutions of six key changes in the history of communication---becoming human; creating writing; developing print; capturing the image; harnessing electricity; and exploring cybernetics---the author reveals how communication was generated, stored, and shared. This ecological approach provides a comprehensiveunderstanding of the key variables that underlie each of these great evolutions-revolutions in human communication. Designed as an introduction for history of communication classes, the text examines the past, attempting to identify the key dynamics of change in these human, technical, semiotic, social, political, economic, and cultural structures, in order to better understand the present and prepare for possible future developments."--BOOK JACKET.