Questions atheists usually ask about Allah might vary but, they're predictable. Consider these: 1. Is there evidence God Exists? 2. How can we prove there is a God? 3. Where is God? 4. What is the origin of God? Where did He come from? and more.
Author: Yusuf Estes
The Nine Conditions of the Testimony of Faith.
Author: Jamaal Zarabozo
Publisher: Al-Basheer Magazine
Source: http://www.islamhouse.com/p/1371
Jesus in Islam: How did the Quran Narrated the stories of the messengers and prophets from Adam to Muhammad, and the Quran had explained in detail the story of Jesus peace up on him.
Author: Ahmed Deedat
Daily and Nightly Supplications
Author: Khalid Aljuraisy
Translators: Muhammad Atif Mujahid Muhammad
Publisher: Al-Juraisi Foundation - http://www.alukah.net - Al Alukah Website
A nice book covering many aspects of wudoo, ghusl, tayammum, and wiping over socks and bandages.
Author: AbdulRahman Bin Abdulkarim Al-Sheha
Source: http://www.islamhouse.com/p/1381
A small but beneficial treatise concerning innovation, celebrating the birth of the Prophet (s), as well as a small note about Wahhabiyyah and the creed Muhammad bin Abdul-Wahhab.
Author: Abdul Aziz bin Abdullah bin Baz
Source: http://www.islamhouse.com/p/1267