Nizam al-Mulk Tusi was the vizier and the power behind the throne for the Seljuq emperors of the eleventh century. Almost single-handedly he brought the empire to its peak, caring for the king and the people with commendable dedication. His wisdom and insight in preventing crises, his understanding of the world of politics and intrigue, and his avoidance of entangling himself in conspiracies make him a figure of much admiration and respect. His consititution the ‘Siyastnama’ is considered a political masterpiece and is still translated and studied today. Finally, his work as an educationist in establishing the Nizamiyya institutes which revolutionised the education system in the Islamic world left behind him a legacy which has effects on the world to this day.