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.
An advice and admonition to Muslim sisters about Hijab.
Author: Nawaal Bint Abdullah
Translators: Abdul Qaadir Abdul Khaaliq
Publisher: Islamic Propagation Office in Rabwah
Source: http://www.islamhouse.com/p/1325
In this book, Dr. Saleh As-Saleh just mentions the Quranic verses talking about the following topics, for example: who is Allah, we should worship none but him, proofs for his existence, the final Messenger Muhammad (peace be upon him) and purpose of our life.
Author: Dr. Saleh As-Saleh
Publisher: http://understand-islam.net - Understand Islam Website
The testimony of "Laa ilaaha ill-Allah", its meaning, prerequisites, conditions, and fruits.
Author: Humood Bin Muhammad Al-Lahem
Reveiwers: Muhammad AbdulRaoof
Translators: Mahmoud Reda Morad Abu Romaisah
Publisher: A website Islamic Library www.islamicbook.ws - New Muslims Care Centre
A brief but nice booklet discussing Zakaah, those items and amounts upon which it is due, and where it is to be spent. Includes a few important fataawa related to Zakaah
Author: Abdul Aziz bin Abdullah bin Baz
Source: http://www.islamhouse.com/p/1269
Ibn Rajab al-Hanbali This is a treatise we have written concerning humility (Khushu') and the hearts meekness and breaking (inkisar) before the Lord. The basic meaning of Khushu', is the softness of the heart, its being gentle, still, submissive, broken, and yearning. When the heart is humble, so too is the hearing, seeing, heard, and face; indeed all the limbs and their actions are humbled, even speech. The source of the Khushu, that takes place in the heart is the gnosis of Allah's greatness, magnificence, and perfection.
Author: Ibn Rajab Al-Hanbali