One of the most detailed books describing the rulings of Hajj, Umrah, and visiting the Masjid of the Prophet (peace be upon him).
Author: Sayid Sabiq
Source: http://www.islamhouse.com/p/1395
The Three Fundamental Principles and the Four Basic Rules of Islam.
Author: Muhammad Bin Abdul Wahhab
Publisher: Daar Al-Watan
Source: http://www.islamhouse.com/p/1333
This book is an amended transcript of one of the many, many sittings with the illustrious Shaykh, where he was asked about the issue of Takfeer. The sitting took place in Jordan. The transcript was amended by the Shaykh to make it suitable for print.
Author: Muhammad Naasiruddeen al-Albaanee
Translators: Abbas Abu Yahya
Saheeh International, based out of Saudi Arabia, Translated the meaning of the Quran in English, which is most appropriate for non-Muslims, it is easy and clarity of words and meanings.
Publisher: http://www.islambasics.com - Islam Basics Website - Sahih International
An informative and detailed guide to new Muslims discussing the main pillars of Islam, Faith, as well as various commandments and prohibitions in Islam.
Author: AbdulRahman Bin Abdulkarim Al-Sheha
Publisher: Islamic Propagation Office in Rabwah
Source: http://www.islamhouse.com/p/1383
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.