Ibn Rajab al-Hanbali This is a treatise we have written concerning humility (Khushu') and the hearts meekness and breaking (inkisar) before the Lord. The basic meaning of Khushu', is the softness of the heart, its being gentle, still, submissive, broken, and yearning. When the heart is humble, so too is the hearing, seeing, heard, and face; indeed all the limbs and their actions are humbled, even speech. The source of the Khushu, that takes place in the heart is the gnosis of Allah's greatness, magnificence, and perfection.
Author: Ibn Rajab Al-Hanbali
A nice discussion of some important points needed by those callling to Islam
Source: http://www.islamhouse.com/p/1243
The lofty rank and high station eemaan possesses is not something obscure, as it is unquestionably, the most important duty as well as being the most imperative of all obligations. It is also the greatest and most glorious of them. All the good in the world and the Hereafter is dependent upon the presence of eemaan and on its soundness and integrity. Eemaan holds such a multitude of benefits, ripe fruits, delicious pro-duce, constant food and continual goodness.
Author: AbdurRazzaaq AbdulMuhsin Al-Abbaad
Translators: Abu Safwan Farid Ibn AbdulWahid Haibatan - Abu Safwah Fareed Abdul Wahid
A summary of the rulings, etiquette and Sunnah of fasting.
Author: Muhammad Bin Ibrahim Al-Tuwajre
Reveiwers: Muhammad AbdulRaoof
Translators: Mahmoud Reda Morad Abu Romaisah
Publisher: A website Islamic Library www.islamicbook.ws
A detailed account of the life of the Prophet, may god praise him.
Source: http://www.islamhouse.com/p/1245
This is a small book in which it answers 32 questions through Qur'anic verses. It answers questions about Allah, the true creator, previous nations, meaning of worship, saving Quran from corruption, Prophet Muhammad and Prophet Jesus (peace be upon them), the Hereafter and destination of both believers and disbelievers.
Author: Mohammed Bin Yahya Al-Taum - Muhammad ibn Yahya Al-Toom