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.
By The Imam, the Hafidh Abu Hafs 'Umar bin 'Ali al-Bazzar. Translated By Abu Sabaayaa. “If I had to swear standing between the corner of the Ka'bah and the spot of Ibrahim, I would swear that I have not laid my two eyes on anyone like him, nor has he seen anyone as knowledgeable as himself.” - al-Hafidh adh-Dhahabi
Author: Omer Bin Ali Al-Bazzar
This book clearly and concisely presents the Islamic concept of Tawbah (repentance) and its viewpoint wherein salvation by faith and salvation by deeds are combined in a truly unique manner. A book that is relevant to every Muslim.
Author: Abu Ameenah Bilal Philips
A detailed description of the Dajjaal as mentioned in various ahaadeeth.
Author: Muhammad Salih Al-Munajjid
Publisher: Islamic Propagation Office in Rabwah
Source: http://www.islamhouse.com/p/1361
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
A Collection Of Wise Sayings (Al-Fawaid): is one of the well-known compilations of Imam Ibn Qayyim Al-Jawziyyah (may Allah have mercy upon him). This book consists of the elevated thoughts that Allah bestows upon some of His servants as He wills. So whenever any of these scattered pearls of wisdom occurred to the Imam, he would immediately record them.
Author: Ibn Qayyim al-Jawziyyah
Publisher: Umm Al-Qura for Translation, Publishing & Distribution