A simplified Introduction to Islam in English language in categories of question and answer in different aspect, and it increases the question from non muslims.
Author: Yaser Jaber
Reveiwers: Muhammad AbdulRaoof
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
This book is one of the most important Islamic books which gives right answers about Christianity.
Author: Sheikh-ul-Islam ibn Taymiyyah
The testimony of "Laa ilaaha ill-Allah", its meaning, prerequisites, conditions, and fruits.
Author: Saleh Bin Fawzaan al-Fawzaan
Publisher: http://www.islammessage.com - Islam Message House Website
Source: http://www.islamhouse.com/p/1223
The book contains detailed information and descriptions that show how the Bible was changed and tampered with over the past two millennia. The account and the discussions presented are based on, and collected from, the writings of Christian authors, the Church and the Bible. By Misha'al ibn Abdullah
The permissible and prohibited types of waseelah
Author: Naasir Bin Abdulkarim al-Aql
Publisher: Daar Al-Watan
Source: http://www.islamhouse.com/p/1297