The Kutadgu Bilig is often considered to be part of the Mirror for Princes, a genre of literature which includes works like the Qābūs-nāmeh, written in 1082, and the Siyāset-nāmeh, written in 1090.
Nizam al-Mulk is also widely known for his voluminous treatise on kingship titled Siyasatnama (The Book of Government) which was written after Malik Shah had requested that his ministers produce books on government, administration and the troubles facing the nation.
Nizam al-Mulk states in his Siyāsatnāma that Khorasani had delegated his authority and coffers in Rayy to Sunpadh prior to journeying to Baghdad, where he was eventually murdered by order of the second Abbasid Caliph, al-Mansur.