These are three good books for learning Arabic Language for the non-native speakers. But we should pay your attention that they are for who has slightly good knowledge about Arabic and how to pronounce it. We don't claim that you can consider them as an alternative to a teacher but they are good step for who wants to be excellent at Arabic. With these books, there is an Arabic-English glossary confined to the words mentioned in these books, and the author shows in its introduction how to find any word.
God in Christianity... What is His Nature?: The intent of this work is to honestly and sincerely present the truth that was found
Author: Naji Ibrahim al-Arfaj
Issues that the caller to Allah must obtain
Author: Muhammad ibn Saleh al-Othaimeen
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
Begin to learn and understand the Qur’an – the easy way! Understand Salah and improve your relationship with Allah; Learn basic Arabic grammar using a new powerful method of TPI; and Through these learn 125 words that occur in the Qur’an 40,000 times.
Author: Abdul-Azeez Abdur-Raheem
Reveiwers: Muhammad AbdulRaoof
Publisher: A website understand Quran www.understandquran.com
Various Prohibitions regarding Speech.
Publisher: Islamic Propagation Office in Rabwah
Source: http://www.islamhouse.com/p/1239