'This is an interesting, important, and well-written book. It contains a great deal of useful new information about the risk behaviours of drug injectors and how they respond or fail to respond to those risks... The book provides detail about how individual drug injectors understand and try cope with these immediate risks. It stands as a considerable achievement and one from which all who work in this field can learn.' Addiction, 95:8 (2000) "This book represents the culmination of a decade's work by consummate researcher-advocates who are not content to disseminate their findings in peer-reviewed scientific journals but who wish to build on research findings to improve the lives of the people they have studied. Pragmatism and the desire to produce change permeate all 13 chapters of this book." (Karen McKinnon, Psychiatric Services, April 2001)

• Learning from Lives.- The Drug Scene and Risk Behaviors in Bushwick.- The Very First Hit.- Network Concepts and Serosurvey Methods.- The Research Participants and Their Behaviors.- Personal Risk Networks and High-Risk Injecting Settings of Drug Injectors.- Syringe Sharing and the Social Characteristics of Drug-Injecting Dyads.- Sexual Networks, Condom Use, and the Prospects for HIV Spread to Non-Injection Drug Users.- Sociometric Networks among Bushwick Drug Injectors.- Networks and HIV and Other Infections.- Prevention and Research.