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
This book gives a clear explanation of the Muslim sound Creed which is the core of the religion of Islam, as the belief in Tawhid (monotheism) is the purpose for which Allah created both mankind and jinn, and thus, those whoes belief in Tawhid is corrupt, are not considered Muslims.
Author: Saleh Bin Fawzaan al-Fawzaan
The Muslim Creed - 'Commentary on the Creed of Aqeedah At-Tahaawiyyah.
Author: Abu Jafar at-Tahawi
Islam is the universal religion, in this comparative study between Islam and Christianity, the reader will notice the tolerant approach of Islam toward other revealed religions.
Author: Ulfat Aziz-us-Samad
Reveiwers: Muhammad AbdulRaoof
An overview of the rites of Hajj, Umrah, and Ziyaarah in the light of Quran and Sunnah.
Author: Muhammad ibn Saleh al-Othaimeen
Source: http://www.islamhouse.com/p/1375
A description of Death, the Life of the Grave, and the Day of Judgment.
Publisher: Islamic Propagation Office in Rabwah
Source: http://www.islamhouse.com/p/1229