A comprehensive explanation and commentary of the first 24 hadith of Imam al-Nawawi's classic compilation, Riyadh al-Saliheen.
Author: Abu Zakaria Al-Nawawi
This is a useful book although it is small. It contains some technical terms for da'wah in English. No doubt all scholars and callers to Islam in English are in much need to something like that to conveys the right message of Islam to all those speak English.
An informative guide to marriage and its various rulings.
Author: Muhammad Naasiruddeen al-Albaanee
Source: http://www.islamhouse.com/p/1275
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 wonderful booklet mentions the predictions about the Prophet Muhammed (Peace be upon him) in Psalm, Old Testament and New Testament. It also discusses some other issues.
Publisher: http://www.rasoulallah.net - Website of Rasoulullah (peace be upon him)
This book on the Opening chapter of the Muslims Glorious book Al-Quran is a serious Attempt to Approach a great task, comprehensive yet simple explanation of Surah Al-Fatiha (The Opening) of the Quran.
Author: Salah Edin A Nefeily
Reveiwers: Muhammad AbdulRaoof
Publisher: http://www.islambasics.com - Islam Basics Website