<P>This second edition furthers conversations about the ongoing society-wide and worldwide digitalization of human communication.</P><P>Reviewing the long lines in the history of media and communication ¿ from writing via printing and broadcasting to computing ¿ the book lays out three general types of media: the human body enabling face-to-face communication here and now; the technically reproduced means of mass communication across space and time; and the digital technologies integrating one-to-one, one-to-many, as well as many-to-many interactions. All these communicative practices coexist in contemporary media environments. Across cultures, genders, and age groups, people go on communicating in the flesh, via wires, and over the air, as illustrated though case studies of mobile communication on mundane matters, and of climate change as a global challenge for human communication and coexistence.</P><P>The second edition includes:</P><UL><LI>Updated accounts of research and public de