In Windows and Mirrors: Interaction Design, Digital Art, and the Myth of Transparency, Jay David Bolter and Diane Gromala argue that, contrary to Donald Norman's famous dictum, we do not always want our computers to be invisible "information appliances." They say that a computer does not feel like a toaster or a vacuum cleaner; it feels like a medium that is now taking its place beside other media like printing, film, radio, and television. The computer as medium creates new forms and genres for artists and designers; Bolter and Gromala want to show what digital art has to offer to...