Discover Islam: A brief book that guides a person towards Islam, Islam is the religion and way of life of about one Fifth of the world's population. Muslims are of diverse nationalities, cultures and races, but their Religion teaches that all humanity is essentially equal. It guides them to the Straight Path.
Publisher: Ministry of Islamic Affairs, Endowments, Da‘wah and Guidance
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
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
A very useful article shows the pure Islamic belief of monotheism. It briefly mentions that Allah alone is worthy of worship, He is worshipped directly and Allah is not like his creation nor his creation is like him.
Author: Abdur-Rahman Demashqeyyah
Reveiwers: Muhammad AbdulRaoof
Publisher: An Islamic centre of Qatar www.fanar.gov.qa
A book which explains the Prohibitions That Are Taken Too Lightly, Allah has laid down obligations which we are not permitted to ignore, and has set limits which we are not permitted to transgress, and has set out prohibitions which we are not allowed to violate.
Author: Muhammad Salih Al-Munajjid
Publisher: http://www.islamqa.com - Islam : Question & Answer Website
How we can be loved by Allah
Publisher: Daar Al-Watan
Source: http://www.islamhouse.com/p/1315