An explanation of the different situations in which one must make prostrations for forgetfulness and when to perform them.
Author: Muhammad ibn Saleh al-Othaimeen
Source: http://www.islamhouse.com/p/1373
The Muslim Creed - 'Commentary on the Creed of Aqeedah At-Tahaawiyyah.
Author: Abu Jafar at-Tahawi
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 summary of the rulings, etiquette and Sunnah of fasting.
Author: Muhammad Salih Al-Munajjid
Publisher: http://www.islamqa.com - Islam : Question & Answer Website
Source: http://www.islamhouse.com/p/1335
The source of all evil is the deviation from the truth and its straight path. The goodness of all matters is the following of truth and adherence to its right way. Truth is the fixed state in which Allah has created every creature in a particular way and managed its affair in a certain manner. Allah is Perfect and exempt from any deficiency or error. This book aims to elucidate the pillars of Imaan (basis of belief, faith) and the characteristics of Kufr (disbelief) and its causes.
Author: Sheikh-ul-Islam ibn Taymiyyah
An excellent 18 page treatise upon the excellence of Hajj and its rulings. Taken from Silsilah Ahadeeth As-Saheehah & Silsilah Ahadeeth Ad-Daeefah. Translated by Abbas Abu Yahya
Author: Muhammad Naasiruddeen al-Albaanee
Translators: Abbas Abu Yahya