Sahih Muslim includes sayings, doings and approvals of the Prophet Muhammad (peace be upon him) narrated by his companions. It is considered the third most authentic book in Islam after the Quran and "Sahih al-Bukhari". It covers almost all aspects of life.
Author: Muslim ibn al-Hajjaj ibn Muslim al-Qushairi an-Naisabori
Translators: AbdulHamid Siddiqui
Publisher: http://www.islamspirit.com - Islam Spirit Website
This book discusses the special place women have in the religion of Islam and seeks to address some of the many misconceptions and false propaganda published by those who are ignorant of this religion or harbor a malicious intent to purposely misrepresent this religion.
Author: AbdulRahman Bin Abdulkarim Al-Sheha
Publisher: http://www.islamland.com - Islam Land Website
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
This book is one of the most important Islamic books which gives right answers about Christianity.
Author: Sheikh-ul-Islam ibn Taymiyyah
This is a book presented by Rasoulallah Website (http://www.rasoulallah.net) shows aspects of our Prophet’s life. It contains topics as: his manners, his exemplary justice, his simple life, his love for the poor, his forgiveness shown to the non-Muslims. It includes other important topics as: how did he achieve reform, can he be taken as a model for Muslims to follow and how did he instill brotherhood among Muslims?
Publisher: http://www.rasoulallah.net - Website of Rasoulullah (peace be upon him)
A Book detailing the rulings concerning Hajj and Umrah.
Author: Mahmoud Reda Morad Abu Romaisah
Publisher: Islamic Propagation Office in Rabwah
Source: http://www.islamhouse.com/p/1391