Review – “The book is clearly intended as the beginning of an on-going dialogue. It ends a bit like a Star Wars movie, with the promise of a sequel. There is clearly opportunity for additional work in data representation, as well as deeper study into each of the areas described in these six chapters. However, the book provides an excellent incentive for system designers to pursue activity-centered design, and a good initial set of tools to start them on their way.” (Carl Bedingfield – ACM Ubiquity)