Virtue of Tawheed and a Warning Against What Contradicts it is a book by Darussalam Research Division. This book defines Tauhid and its fundamentals. Having a strong faith in the oneness of Allah is a basic foundation of the religion of Islam and without it the religion cannot be complete. Therefore, it is very important for all Muslims to be aware of what Tauhid connotes, the definition of its opposite Shirk and its types, and why it is necessary to believe in Islamic monotheism. This book is of 32 pages.