This treatise was prepared by the Agency of Islamic Enlightenment in Hajj. Includes a discussion about those things which nullify a person's Islam as well as common errors made by the commonfolk.
Author: Muhammad ibn Saleh al-Othaimeen
Source: http://www.islamhouse.com/p/1377
Translated from the original Arabic into English, provides a vivid insight into the moral conduct of the early Muslims in a society led by the perfect character of the Prophet Muhammad (pbuh) ('I was only sent to perfect good character'). The Prophet's Companions represent excellent examples of men of vigorous moral stature whose conduct inspired and attracted the masses to the fold of Islam wherever they went during the expansion of the Muslim territories, and contrary to the stereotypic portrayal, in the West, of Islam as being spread by the sword.
Author: Muhammad ibn Ismaeel al-Bukhari
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
Concept of God in Major Religions.
Author: Zakir Naik
This book is one of the most important Islamic books which gives right answers about Christianity.
Author: Sheikh-ul-Islam ibn Taymiyyah
Bulugh Al-Maram (attainment of the objective according to the evidence of the ordinances) is based upon the Ahadith of our Prophet which have been the sources of Islamic Jurisprudence. Al-Hafiz Ibn Hajar Al-Asqalani has recorded the true significance of the Ahadith and their origins & also made a comparison of the versions, if the sources are more than one.
Author: Ibn Hajar Al-Asqalani