Should we call people who do actions of Shirk to Tawheed only?

With what should the daa’iyah start calling people to Islam?

Is it permissible to go into churches for the purpose of da’wah, or just to look around?

How can a woman engage in da’wah outside the home?

Ruling on not doing some mustahabb deeds in order to open the hearts of the people of bid’ah whom one is calling to Islam

A list of brief Islamic sayings for sending to one’s friends