This tool offers practical advice on implementing HIV and STI programmes for and with sex workers. Topics covered include approaches and principles to building programmes that are led by the sex worker community; they include how to implement the recommended condom and lubricant programming, and other crucial health-care interventions for HIV prevention, treatment and care; and they include suggestions on how to manage programmes and build the capacity of sex worker organizations. The tool contains examples of good practice from around the world that may support efforts in planning programmes and services.