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.
Translated from the original Arabic into English, provides a vivid insight into the moral conduct of the early Muslims in a society led by the perfect character of the Prophet Muhammad (pbuh) ('I was only sent to perfect good character'). The Prophet's Companions represent excellent examples of men of vigorous moral stature whose conduct inspired and attracted the masses to the fold of Islam wherever they went during the expansion of the Muslim territories, and contrary to the stereotypic portrayal, in the West, of Islam as being spread by the sword.
Author: Muhammad ibn Ismaeel al-Bukhari
Kitab At-Tawheed 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: Muhammad Bin Abdul Wahhab
Publisher: http://www.islambasics.com - Islam Basics Website
This treatise was prepared by the Agency of Islamic Enlightenment in Hajj. Includes a discussion about those things which nullify a person's Islam as well as common errors made by the commonfolk.
Author: Faisal Bin Ali Al-Ba'adani
Reveiwers: Muhammad AbdulRaoof
Publisher: A website Islamic Library www.islamicbook.ws
One of the works on this subject is his “al‐Fatwaa al‐Hamawiyyah” which he wrote as an answer to a question presented to him. In it, he was asked what the scholars and Imaams of the religion say concerning the Aayaat and the Ahaadeeth of the Si/aat, or the attributes and characteristics of Allah.
Author: Sheikh-ul-Islam ibn Taymiyyah
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