Ibn Katheer, At-Tabari, As-Syooti and Other Historians. The four Rightly guided Caliphs (Khaliph's) Abu Bakr As-Sideeq, Umar ibn Al-Khattaab, Uthmaan Ibn 'Affaan and Ali Ibn Abi Taalib. The Biography of Umar Ibn Abdel-Azeez who is regarded as one of the Rightly Guided Chaliphs is also included in this book.
Author: Imam Ibn Kathir
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.
Islam: The Complete and Final Message to Man is a brief presentation of Islam defining its terms and teachings, followed by an advice to the Muslims and non-Muslims on following the path of the Righteous Predecessors
Author: Dr. Saleh As-Saleh
Islam is the religion of peace: This book addresses an important subject, a concept of Islam from the social justice and fighting injustice as a basis for the establishment of peace in the international community. A discussion of how Islam is a religion that promotes peace and understanding among all nations, and prohibits violence and aggression against anyone.
Author: AbdulRahman Bin Abdulkarim Al-Sheha
Publisher: http://www.islamland.com - Islam Land Website
We introduce this book as a clear message and a reminder of the principles and fundamentals of Shariah which should not be absent from any Islamic movement drawn into committing itself, in all matters, to Shariah laws.
Author: Abdul-Malik al-Qasim
A nice discussion of some important points needed by those callling to Islam
Source: http://www.islamhouse.com/p/1243