Imam Mas'ud ibn Umar Taftazani's (ca, 722/1322-792/1389?) Arabic language work on eloquence. This edition contains the notes and annotations of Imam Ali Ibn Muhammad Jurjani on the original text. Taftazani' work was a summary of the work titled 'Talkhis al-Miftah' the famous Arabic language study of rhetoric by al-Khatab al-Qazwini (Jalal al-Din Muhammad ibn Abd al-Rahman al-Qazwini, 666/1268 - 739/1338). Qazani's work was in turn a summary of the the third part of the early Arabic grammar work, 'Miftah al-Ulum' (Key to the Disciplines) by Yusuf ibn Abi Bakr Sakkaki (d. ca 626/1229)