A highly dedicative research work based on the traditions of the Holy Prophet of Islam and authentic Sunni sources by a researcher of a high caliber, which enlightens the sacrificing life of Imam Ali A.S. and his vital role for the glory of Islam during the life of the Holy Prophet SAWA and during the post Prophetic three caliphate period. The able writer has endeavored to discover the relationship between the historical events, involving the life of Imam that took place during 53 years from the commencement of the prophethood to the end of the righteous Caliphate. A thrillingand awakening biography.