This book covers the life, leadership, and legacy of Uthman ibn Affan (RA), the third Caliph of Islam and one of the Prophet Muhammad’s (ﷺ) closest companions. It begins with his early life, his noble lineage from the Quraysh, his conversion to Islam, and his generosity in supporting the Muslim community. The narrative then focuses on his caliphate (644–656 CE), highlighting his contributions such as expanding the Islamic state, improving administration, and commissioning the standardized compilation of the Qur’an to preserve its authenticity. The book also addresses the challenges of his rule, including growing political unrest, regional tensions, and the emergence of opposition groups. It concludes with the events leading to his martyrdom, his patience in the face of adversity, and his enduring influence on Islamic history, portraying him as a model of piety, modesty, and generosity.