According to Biblical scholars and the text of the Bible itself, Shaikh Ahmed Deedat explained in detail regarding "Is the Bible God's word?"
Author: Ahmed Deedat
The conflict between truth and falsehood is ongoing and will last as long as this world remains. The fact that some groups among the Ummah of Muhammad (peace and blessings of Allah be upon him) are following the people of falsehood.
Author: Muhammad Salih Al-Munajjid
Publisher: http://www.islamqa.com - Islam : Question & Answer Website
A nice discussion of some important points needed by those callling to Islam
Source: http://www.islamhouse.com/p/1243
The author refers to the Quranic verses and Ahadith by interpreting them in a very simple and comprehensible style, and also brings to light the true status of all the unlawful customs and rituals which are commonly practiced in the society and are detrimental to the faith of Tauhid. Tauhid (Oneness of Allah) is the basis of the Islamic religion.
Author: Shah Ismail Shaheed
Publisher: http://www.dar-alsalam.com - Darussalam Publications Website
A detailed description of the different ways the Prophet (s) advised people.
Author: Muhammad Salih Al-Munajjid
Publisher: Islamic Propagation Office in Rabwah
Source: http://www.islamhouse.com/p/1359
The author said in its introduction, "Nothing offends more the Christians than to cast doubt about the doctrine of the Trinity, the fountainhead of their faith. Since I grew up as a Christian, I know by heart that it will surely injure a devout follower of Christianity something he knew as true. But to lend a blind eye when I know better is far from righteousness since I am bound by the God's Commandments to guide those mislead by the false doctrine. It is a basic right of every individual to know the truth that will lead him to the right path.