According to the earliest sources, compiled from the works of Ibn Rajab al-Hanbali, Ibn al-Qayyim al-Jawziyya and Abu Hamid al-Ghazali. Taqwa is an abundant treasure, a precious trait, an honourable substance, a great success. Those who have Taqwa are the friends of Allah. Allah has promised them success at the time of death and and deliverance from Hell on the Day of Judgment.
Author: Group of Scholars
Reveiwers: Muhammad AbdulRaoof
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
Forty Encounters With the Beloved Prophet -Blessings and Peace Be Upon Him- His Life, Manners and Characteristics: these encounters in a brief and simple way in order to present Muslims with a glimpse of Prophet Muhammad -pbuh-, his guidance and some of the aspects which made him a role model
Author: Adel ibn Ali Al-Shiddy
The Choice - Islam and Christianity: Two Volumes, By Ahmed Deedat, An excellent book discussing Islam and Christianity in the light of Holy Quran and the Sunnah.
Author: Ahmed Deedat
Why I Chose Islam: A story of a priest who reverted to Islam, it is based on a True Story.
Author: M. Emery
Publisher: Islamic Propagation Office in Rabwah
This is an important book talks about a common issue misunderstood but misused by lots of thinkers and orientalists. It is “Why did Prophet Muhammad marry Aisha the young girl?” The author shows the reason behind their discussion. They want to distort the picture of Prophet Muhammad not criticize the marriage of young girl. Also if this kind of marriage was strange, why did not the disbelievers of Quraish use it as a pretext against Muhammad?! The author discusses other topics such as: Europe also allows marrying young girls, the age of consent in most countries worldwide.
Publisher: http://www.rasoulallah.net - Website of Rasoulullah (peace be upon him)