Documents the experience of one of the world’s largest international HIV/AIDS prevention projects, which was implemented by FHI and its partners in 45 countries. It describes lessons learned during AIDSCAP, with examples and project profiles, in ten technical and programmatic areas: behaviour change communication, improving prevention and treatment of sexually transmitted diseases, prevention marketing, policy development, behavioral research, evaluation, gender and HIV/AIDS, management, AIDS care and support, and cross-border interventions