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.
A book on how to develop Khushoo in prayers, rulings on Khushoo, the means of developing Khushoo, knowing the advantages of Khushoo in prayers and etc.
Author: Muhammad Salih Al-Munajjid
Publisher: http://www.islamqa.com - Islam : Question & Answer Website
What Does it Mean : You Are a Muslim ?
Author: Suleiman Saoud Al Saqer
Publisher: Islamic Propagation Office in Rabwah
Jesus and Christianity In the Perspective of Islam: This book guides those who misunderstood the teachings of Jesus and Christianity in the Perspective of Islam.
Publisher: Ministry of Islamic Affairs, Endowments, Da‘wah and Guidance
Rulings regarding Eid and some common errors relating to it.
Author: Abdul-Majeed Ali Hasan - Abdul Majeed Ali Hasan
Publisher: AHYA Multi-Media
Source: http://www.islamhouse.com/p/1307
A nice discussion of some important points needed by those callling to Islam
Source: http://www.islamhouse.com/p/1243