An excellent book for non-Muslims explaining various aspects of Islam.
Author: Pete Seda
Publisher: Islamic Propagation Office in Rabwah
Source: http://www.islamhouse.com/p/1301
God in Christianity... What is His Nature?: The intent of this work is to honestly and sincerely present the truth that was found
Author: Naji Ibrahim al-Arfaj
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)
The Fasting of Ramadan: a reference that simplified all matters pertaining to the fast and Ramadan in this short and concise treatise.
Author: Muhammad Jameel Zeeno
By Shaykhul-Islaam Ibn Taymiyyah. Actions are distinguished, one from the other, with respect to their excellence in the Sight of Allaah in accordance with the condition of the heart, not by their number or form, but rather due to the strength of the caller, his truthfulness, his sincerity and the extent to which he prefer Allaah over himself…
Author: Sheikh-ul-Islam ibn Taymiyyah
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