A nice discussion of some important points needed by those callling to Islam
Source: http://www.islamhouse.com/p/1243
The Life and The Aqeedah of Muhammad ibn Abdul-Wahhab: This book is not one with a political agenda. It is meant neither to support nor to critique any contemporary regimes or policies. Indeed, the driving force behind this work is much greater and more important than that. It has to do with, first, the religion of Islam as preached by the Prophet (peace and blessings of Allah be upon him) himself and, second, with the honor and rights of an individual Muslim, Muhammad ibn Abdul-Wahhab.
Author: Mahmoud Reda Morad Abu Romaisah
Reveiwers: Muhammad AbdulRaoof
Publisher: A website Islamic Library www.islamicbook.ws
The testimony of "Laa ilaaha ill-Allah", its meaning, prerequisites, conditions, and fruits.
Author: Humood Bin Muhammad Al-Lahem
Reveiwers: Muhammad AbdulRaoof
Translators: Mahmoud Reda Morad Abu Romaisah
Publisher: A website Islamic Library www.islamicbook.ws - New Muslims Care Centre
Generally regarded as the single most authentic collection of hadiths, Sahih al-Bukhari covers almost all aspects of life in providing proper guidance from the Messenger of Allah. This book is the work of over 16 years by Imam al-Bukhari who before writing any hadith in this book performed two rak'ahs prayer of guidance from Allah and when he was sure of the hadith's authenticity, he wrote it in the book.
Author: Muhammad ibn Ismaeel al-Bukhari
Publisher: http://www.islamspirit.com - Islam Spirit Website
A very famous book on King Abdul Aziz noble character.
Author: Khalid Aljuraisy
Reveiwers: Muhammad AbdulRaoof
Publisher: http://www.alukah.net - Al Alukah Website
This is the second treatise in the collection The Beliefs of the Pious Predecessors and the People of Hadeeth. The Author present it to the respected readers after Allah has ennobled him by making him concerned with it and by checking and verifying the ahaadeeth mentioned therein, (all) by the bounty of Allah, the Exalted
Author: Imam Ahmed ibn Hanbal