Hezbut Tawheed in Brief by Imam Hossain Mohammad Salim explains why the Muslim Ummah remains divided despite sharing one Allah, one Messenger, one Book, and one Deen. In clear and concise language, it identifies the root causes of division and offers practical solutions. The book presents Islam as a rational and universal system of life and outlines the core ideology of Hezbut Tawheed, guiding readers to understand its message quickly.