The "Islamic Studies" series of books by the prolific writer and scholar Dr. Bilal Philips are part of a meticulously written series intended to guide young Muslims in a manner that helps them acquire a thorough practical and spiritual foundation. This series have been generally acknowledged as an excellent introduction set to the principles of the Islamic faith, with core sciences discussed and explored, for both the new Muslim as well as the "old" Muslim wishing to brush up on the fundamentals.
Author: Abu Ameenah Bilal Philips
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
By Shaykhul-Islaam Ibn Taymiyyah. Actions are distinguished, one from the other, with respect to their excellence in the Sight of Allaah in accordance with the condition of the heart, not by their number or form, but rather due to the strength of the caller, his truthfulness, his sincerity and the extent to which he prefer Allaah over himself…
Author: Sheikh-ul-Islam ibn Taymiyyah
Fatawaa concerning Taraweeh
Author: Abdul Aziz bin Abdullah bin Baz
Source: http://www.islamhouse.com/p/1265
A nice book covering many aspects of wudoo, ghusl, tayammum, and wiping over socks and bandages.
Author: AbdulRahman Bin Abdulkarim Al-Sheha
Source: http://www.islamhouse.com/p/1381
Rulings concerning different aspects of the Adhaan.
Author: Abdullah Bin Abdur-Rahman AL-Jibreen - Muhammad Bin AbdulRahman Al-Areefi
Publisher: Memphis Dawah
Source: http://www.islamhouse.com/p/1287