Mobile communication has dramatically changed over the past decade with the diffusion of smartphones. Unlike the basic 2G mobile phones, which 'merely' facilitated communication between individuals on the move, smartphones allow individuals to communicate, to entertain and inform themselves, to transact, to navigate, to take photos, and countless other things. Mobile communication has thus transformed society by allowing new forms of coordination, communication, consumption, social interaction, and access to news/entertainment. All of this is regardless of the space in which users are immersed. Set in the context of the developed and the developing world, The Oxford Handbook of Mobile Communication and Society updates current scholarship surrounding mobile media and communication. Chapters examine the communal benefits, social consequences, theoretical perspectives, and future consequences of mobile communication.