The range and provision of audiovisual culture are constantly expanding. Rodowick develops some concepts for understanding how the nature of representation, signification, and the social organization of human collectivities in time and space were changing with the appearance of new forms of digital communications. When Rodowick began writing in the spring of 1988, the technologies he referred to - for example, digitized video in multimedia publications or electronic publishing on the Internet - were either not commercially available or else not widely used by people in the humanities. Now they all are. This is an index of the speed of technological change and commercialization that today confronts telecommunications, entertainment, and educational media.

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