This book is enlightening for urban studies in the future. Clearly as it suggested the urbanist shall be (able to be) more sensitive to non physical spaces as well as 'conventional' spatial interventions. However it is also quesionable in what way we can catch up with the fast, unpredictable development of internet (along with other h-tech industries which has already gone far beyond our imigination), a review on the developed network is self-evidently far from enough. In reality internet users,at the same moment,urban space users learn cyber-space by clicking, browsing, online-purchasing rather than reading, apparently it is more effective and empirically more understandable. This fact makes theories about cyber-society more or less, inevitbly obsolete and seemingly less neccessary. After all the book is intelligent especially when it explicitly, or implicitly indicates the interaction (possible interations) between urban space and cyber-space.