‘Da’wah’ means an invitation. In the Islamic context it means an invitation to Islam. Thus Da’wah means conveying the message of Islam to Non-Muslims and inviting them to Islam. A person who does Da'wah is called a 'Da'e'.
Different Mediums of doing Da’wah
Da’wah through different mediums
Individual Da'wah
Women in Da'wah
Some Tips on Da'wah