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
A proof that the Qur'an is from God and that Muhammad is a Messenger of God.
Author: Abdullah Bin Abdur-Rahman AL-Jibreen
Publisher: Memphis Dawah
Source: http://www.islamhouse.com/p/1285
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
Most people agree to the fact that Allah’s (God’s) Word cannot be contradictory. What He spoke about Himself must be true. He made Himself known as The Creator, The One, The Originator, and The Provider. He is the First, nothing is before Him; The Last, nothing is after Him; The Most High, nothing is above Him; The Most Near, nothing is beyond His reach, and He encompasses everything while He is above heavens, distinct and separate from His creatures. Great in His Majesty and Honor, Most Merciful, Severe in Punishment, All-Knower, Most Compassionate, All-Wise, and All-Just; Most Perfect in all of His Names and Attributes. He does not beget, nor is He begotten. There is no equal to Him, and there is nothing like unto him, and thus He alone deserves to be worshipped. In essence, the religion as revealed1 to nations before us and to mankind up to the Day of Resurrection, calls for the worship of none but God (Allah).
Author: Dr. Saleh As-Saleh
Reveiwers: Muhammad AbdulRaoof
One of the works on this subject is his “al‐Fatwaa al‐Hamawiyyah” which he wrote as an answer to a question presented to him. In it, he was asked what the scholars and Imaams of the religion say concerning the Aayaat and the Ahaadeeth of the Si/aat, or the attributes and characteristics of Allah.
Author: Sheikh-ul-Islam ibn Taymiyyah
The best explanatory translation of the Qur'aan by Muhammad Muhsin Khan and Taqi-ud-Deen Hilaali.
Translators: Muhammad Muhsin Khan - Taqi-ud-Deen Hilaali
Publisher: http://www.qurancomplex.org - King Fahd Complex For Printing The Holy Quran Website
Source: http://www.islamhouse.com/p/1237