A nice discussion of some important points needed by those callling to Islam
Source: http://www.islamhouse.com/p/1243
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.
In this classical treatise, Ibn Rajab (may Allah have mercy on him) discusses the differences between advising and condemning, which is an extremely important topic since it is very common that the two are confused for one another. For the most part, his talk revolves around the dealings and affairs of the scholars, and how it was from their way to advise and accept the truth from one another. And he shows how condemning was not from their characteristics, but rather from the signs of the evil and wicked people who held hidden goals and objectives.This book is especially important in these days due to the wide scale confusion that exists on this subject amongst the Muslims. So today when we find scholars of the Sunnah refuting weak opinions of other scholars from the past, they are quickly accused of hating those scholars of the past and just condemning them, when in fact they are really advising the ummah and warning the Muslims against following a man in his error. So, we hope that these matters become clear to the reader upon studying this treatise and that he is able to distinguish those who are truly advising from those who are just condemning.
Author: Ibn Rajab Al-Hanbali
Translators: Abu Maryam Ismaeel Alarcon
Publisher: http://www.almanhaj.com - Almanhaj Website
Introduction to history of polytheism and monotheism: Allah (glory be to him) created all people as Muslims and monotheists but devils came to them and changed and distorted their religion. Allah said in a qudsi hadith, “I created all my slaves as haneefs (monotheists), but the devils came to them, made them deviate from their religion, forbade them that which I had permitted to them, and commanded them to join partners with me for which I has given no authority.” As soon as people commit a type of polytheism, Allah sends his prophets to call them to the suitable type of monotheism.
Author: Ameen Al-Ansaari
Publisher: A website Knowing Allah : http://knowingallah.com
A wonderful booklet mentions the predictions about the Prophet Muhammed (Peace be upon him) in Psalm, Old Testament and New Testament. It also discusses some other issues.
Publisher: http://www.rasoulallah.net - Website of Rasoulullah (peace be upon him)
By The Imam, the Hafidh Abu Hafs 'Umar bin 'Ali al-Bazzar. Translated By Abu Sabaayaa. “If I had to swear standing between the corner of the Ka'bah and the spot of Ibrahim, I would swear that I have not laid my two eyes on anyone like him, nor has he seen anyone as knowledgeable as himself.” - al-Hafidh adh-Dhahabi
Author: Omer Bin Ali Al-Bazzar