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.
A proof that the Qur'an is from God and that Muhammad is a Messenger of God.
Author: Abdullah Bin Abdur-Rahman AL-Jibreen
Publisher: Memphis Dawah
Source: http://www.islamhouse.com/p/1285
Fiqh us-Sunnah
Author: Sayid Sabiq
A complete authoritative book on the life of Prophet Muhammad (S) by Sheikh Safi-ur-Rahman al-Mubarkpuri. It was honored by the World Muslim League as first prize winner book. Whoever wants to know the whole life style of the Prophet in detail must read this book.
Author: Saifur Rahman Al-Mubarakpuri
THE MUSLIM CREED is one of the best books on the subject of Tawheed (Islamic Monotheism) and ranks high in authenticity. Till date it has gone through various publications; and had been the means for guidance of the millions of people throughout the world; by taking them out of the darkness of polytheism and error.
Author: Suhaib Hasan AbdulGhaffar
Reveiwers: Muhammad AbdulRaoof
Publisher: http://www.dar-alsalam.com - Darussalam Publications Website
The Nature Of Fasting: This book will help the reader better understand the fine points about fasting. like; What is the nature of the things that break the fast? What are the rules by which one can know the difference between what breaks the fast and what does not?
Author: Sheikh-ul-Islam ibn Taymiyyah
Publisher: http://www.dar-alsalam.com - Darussalam Publications Website