(Hardback)

This is the spiritual autobiography of Nasir al-Din al-Tusi, the 13th-century Shi'i philosopher and scholar. It appears in English translation together with the Persian text. The author contributed to different fields of learning, including astronomy, theology and philosophy.

(Hardback)

Written by Nasir al-Din al-Tusi (1201 - 1274), 'The Sultan's Sex Potions is part of a relatively small group of works devoted to aphrodisiacs, as well as sexual stimulants, sexual practices and positions. Written at the request of the ruler the work was intended to be used as a manual.