Kitab At-Tawheed is one of the best books on the subject of Tawheed (Islamic Monotheism) and ranks high in authenticity. Till date it has gone through various publications; and had been the means for guidance of the millions of people throughout the world; by taking them out of the darkness of polytheism and error.
Author: Muhammad Bin Abdul Wahhab
Publisher: http://www.islambasics.com - Islam Basics Website
A proof that the Qur'an is from God and that Muhammad is a Messenger of God.
Author: Abdullah Bin Abdur-Rahman AL-Jibreen
Publisher: Memphis Dawah
Source: http://www.islamhouse.com/p/1285
3 Treatises concerning Tobacco by the great scholars: Muhammmad bin Ibraaheem, as-Sadi, and bin Baaz
Author: Abdul Aziz bin Abdullah bin Baz - Abdur-Rahman Bin Nasir as-Sadi - Muhammad bin Ibraaheem Aal-ish-Sheikh
Source: http://www.islamhouse.com/p/1235
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 reference that simplified all matters pertaining to the fast and Ramadan in this short and concise treatise.
Author: Muhammad ibn Saleh al-Othaimeen
Reveiwers: Muhammad AbdulRaoof
Publisher: A website Islamic Library www.islamicbook.ws
A brief but nice booklet discussing Zakaah, those items and amounts upon which it is due, and where it is to be spent. Includes a few important fataawa related to Zakaah
Author: Abdul Aziz bin Abdullah bin Baz
Source: http://www.islamhouse.com/p/1269