This is an educational manual for working with men to question non-equitable views about masculinity and develop more positive attitudes to prevent unhealthy behaviors that put them and their partners and families at risk. It can also be used to train facilitators who will implement workshop activities with groups of men. The activities are intended for use with men of all ages, although some adaptations might have to be made depending on the ages of the men and the country and community context. These activities can also be adapted for use with groups of men and women.