Always connect - that is the imperative of today's media. In this book, the author turns our usual understanding of media on its head by arguing that these moments reveal the ways the impossibility of communication is integral to communication itself - instances they call excommunication.

Alexander R. Galloway is associate professor of media studies at New York University and lives in New York, NY. He is the author of four books on digital media and critical theory, most recently The Interface Effect.