Book of Government or Rules for Kings : The Siyar Al Muluk or Siyasat-nama of Nizam Al-mulk, Paperback by Darke, Hubert, ISBN 1138964883, ISBN-13 9781138964884, Like New Used, Free shipping in the US A translation of a classic 11th-century Persian text on behaviour and conduct in government, written between 1086 and 1091 by Nizam al-Mulk, who for over 30 years was Chief Minister of two successive rulers of the Seljuk, who had created an Empire