The treatise by Imam ibn Hanbal, the Imam of the Hanbali school of juristic reasoning, renowned for his steep knowledge, was written several hundred years ago to the inhabitants of a town where the Imam stayed for a period of time. It contains a full and clear description of the prayer and includes detailed observations of the mistakes, which Imam Ahmad observed during his time in that town. It was and remains an invaluable work for all Muslims. Detailing as it does many common errors made during prayers, some of which are serious enough to invalidate the act of worship.
Author: Imam Ahmed ibn Hanbal
Reveiwers: Muhammad AbdulRaoof
A nice discussion of some important points needed by those callling to Islam
Source: http://www.islamhouse.com/p/1243
Prophet Muhammad (peace and blessings be upon him) is the best role model for all humankind. Among his outstanding virtues and characteristics, he was an extraordinary husband, a perfect father, and a unique grandfather. He was also a great statesman, judge, and spiritual leader. His most distinctive quality, however, was the fact that he was a blessing to all in both word and deed.
Author: Muhammad Bin Isa Al-Tirmidhi
Reveiwers: Muhammad AbdulRaoof
Various Prohibitions regarding Speech.
Publisher: Islamic Propagation Office in Rabwah
Source: http://www.islamhouse.com/p/1239
Rulings concerning different aspects of the Adhaan.
Author: Abdullah Bin Abdur-Rahman AL-Jibreen - Muhammad Bin AbdulRahman Al-Areefi
Publisher: Memphis Dawah
Source: http://www.islamhouse.com/p/1287
A very important book talks about some misconceptions about Islam such as: allowing husbands to beat their wives, punishments by Islam for the criminals, not allowing religious freedom which is considered intolerance, prohibiting music, and terrorism in the name of jihad.