A nice discussion in English of some fifteen important points needed by those calling to Islam.
Fifteen Points concerning the Call and the Caller
PDF 572.5 KB 2019-05-02
DOC 2.1 MB 2019-05-02
Quranic dialogue between a son and his father: A message to the new muslims
Cooperation among Preachers and its Effect on Society
Difference in Opinion Among Scholars
A Treatise on Calling to Allah