This manual provides excellent information and analysis on the use of participatory processes to address stigma and gender-based violence in HIV/AIDS prevention efforts. The manual describes three tools or processes that can be used in participatory-development projects: participatory learning and action (PLA); community-led action research (CLAR); and transformatory workshops. It contains a field guide for implementing CLAR; sample agendas and facilitator instructions for one- and three-day CLAR workshops and for two-day and three-day transformatory workshops for men and women and for boys and girls; and a sample intervention plan.