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 addresses an important subject, The only way to achieve true happiness is Islam and call for the faith in Allah and His angels, His Books, His Messengers, the Last Day, and destiny.
Author: AbdulRahman Bin Abdulkarim Al-Sheha
Publisher: http://www.islamland.com - Islam Land Website
Introduction to history of polytheism and monotheism: Allah (glory be to him) created all people as Muslims and monotheists but devils came to them and changed and distorted their religion. Allah said in a qudsi hadith, “I created all my slaves as haneefs (monotheists), but the devils came to them, made them deviate from their religion, forbade them that which I had permitted to them, and commanded them to join partners with me for which I has given no authority.” As soon as people commit a type of polytheism, Allah sends his prophets to call them to the suitable type of monotheism.
Author: Ameen Al-Ansaari
Publisher: A website Knowing Allah : http://knowingallah.com
One Hundred famous Weak or Fabricated Traditions attributed to the Prophet.
Author: Ihsan Al-Utaibi
People face many obstacles which they think stand between them and repentance, some of which exist within their own selves, and others in the world around them. This brief book clears up this confusion, dispel doubts, explain wisdom and drive away the Shaytaan.
Author: Muhammad Salih Al-Munajjid
The permissible and prohibited types of waseelah
Author: Naasir Bin Abdulkarim al-Aql
Publisher: Daar Al-Watan
Source: http://www.islamhouse.com/p/1297