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 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
Undoubtedly, the heart leans towards those who are kind and gentle. It was said a long time ago: "Make your face happy and your words gentle, and you will be more beloved to the people than those who give them a gift". The one calling to the religion of Islam and dealing with other people has the utmost need to gather the people around him, and cause their hearts to lean towards him so that they will listen to him. Adorning himself with kindness and gentleness helps to achieve that goal with the grace of Allah.
Allah Almighty ordered all his servants to enter Islam and adhering to it and warned them of disobeying him. Also he sent His messenger to call to this. Allah told us that the one who follows him is the rightly guided and the one who turns away from his call goes astray. He warned us in many ayahs of apostasy, polytheism and disbelief.
Author: Abdur-Rahman Abdul-Khaliq
Reveiwers: Muhammad AbdulRaoof
Translators: Mahmoud Reda Morad Abu Romaisah
Publisher: Cooperative Office for Propagation, Guidance, and Warning of Expatriates in the city of Bade'ah - A website Islamic Library www.islamicbook.ws
The Promised Prophet of the Bible
Author: Munqith ibn Mahmood As-Saqqar
An informative book about the virtues of studying, understanding, reciting, memorizing, and acting upon of the Qur'an, as well as a mention of the virtues of various Surahs.
Author: AbdulQader Al-Arnaoot
Translators: Muhammad Bin Munir Al-Qashlan
Publisher: International Islamic Publishing House
Source: http://www.islamhouse.com/p/1379