A new breed of public interactive installations is taking root that overturns the traditional approach to artistic experience. Architects, artists and designers are now creating real-time interactive projects at very different scales and in many different guises. Some dominate public squares or transform a buildings facade - others are more intimate, like wearable computing. All, though, share in common the ability to draw in users to become active participants and co-creators of content, so that the audience becomes part of the project. Investigating further the paradoxes that arise from this new responsive media at a time when communication patterns are in flux, this title features the work of leading designers, such as Electroland, Usman Haque, Shona Kitchen and Ben Hooker, ONL, Realities United Scott Snibbe. While many works critique the narrow public uses of computing to control people and data, others raise questions about public versus private space in urban contexts; all attempt to offer a unique, technologically mediated form of self-learning experience, but which are most effective concepts in practice?