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 nice discussion of some important points needed by those callling to Islam
Source: http://www.islamhouse.com/p/1243
Ibn Taymiyyah said: "This (enjoining good and forbidding evil) is a duty that the entire Ummah is obliged to fulfil. It is what the Ulama know as an obligation of collective responsibility, if a group in society undertook to discharge it, the other members of this society are absolved from it. The entire Ummah is commissioned to undertake it, but if a group therein was responsible for discharging it, the rest of society is no longer obliged to undertake it."
Author: Sheikh-ul-Islam ibn Taymiyyah
Reveiwers: Muhammad AbdulRaoof
Translators: Salim Abdullah Marjan
Fatawaa concerning Taraweeh
Author: Abdul Aziz bin Abdullah bin Baz
Source: http://www.islamhouse.com/p/1265
This is a booklet that briefly addresses the rulings of Fasting, including a clarification of the categories of people relative to the obligation of fasting, the immeasurable benefits of fasting, and things that nullify fasting. We will also address the benefits and rulings pertaining to Zakaah.
Reveiwers: Muhammad AbdulRaoof
Publisher: http://www.dar-alsalam.com - Darussalam Publications Website
A discussion of the obligation of keeping a beard and a clarification of some common misconceptions.
Author: Muhammad al-Jibaly
Publisher: Al-Kitaab & as-Sunnah Publishing
Source: http://www.islamhouse.com/p/1231