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
The Promised Prophet of the Bible
Author: Munqith ibn Mahmood As-Saqqar
Just One Message: is a book to those who seek the truth sincerely, honestly, and open-mindedly.
Author: Naji Ibrahim al-Arfaj
Warning to those who have abandoned prayers
Author: Khaalid Abu Saalih - Khalid Abu Salih
Publisher: Daar Al-Watan
Source: http://www.islamhouse.com/p/1327
This book includes a comprehensive vision of issues related to the promotion of virtue and prevention of vice and its official establishment in the Kingdom of Saudi Arabia. This book was prepared by a group of Saudi academicians, males and females, representing different Saudi universities and various geographical regions. They address the Western public opinion, its political and intellectual sources. Their aim is to clarify reality for Western public opinion, its political, intellectual and media sources. This reality that remains obscure for this public opinion as a result of certain political circumstances, religious superiority or suspicious media lusts. This reality was obscured from the West by the current rapid international developments and changes.
A nice discussion of some important points needed by those callling to Islam
Source: http://www.islamhouse.com/p/1243