Promundo and MenEngage Alliance, with support from UNFPA, produced this toolkit that addresses strategies and lessons learnt for engaging men and boys in diverse themes such as sexual and reproductive health, maternal, newborn and child health, fatherhood, HIV and AIDS, gender-based violence, advocacy and policy, as well as addressing issues around monitoring and evaluation of this work. It includes tools and activities from organisations and programs from around the world that can be adapted and utilised by other organisations.