Tayyaba al-Din Mawlawi Arzanjani is an anonymous eighth-century lunar messenger and writer in Asia Minor. His work called Manshat was written in his handwriting in 822 AH. The mentioned sources have not been corrected so far and have not been studied in Mostofi's research. In this paper, by means of analysis and description of qualitative content, the origins of Arzanjani have been analyzed textually. Findings show that the present work is a text that has been written with the intention of guiding and providing lettering patterns in the first place for the public and in the second place for secretaries. The types of formal and informal correspondence are evident in the text; In the position of the name of the audience, a specific name is not obvious and some adverb has been used. The correspondence of the work is not very long and satisfactory compared to the conventional method of the ninth century. The structures of correspondence are influenced by the common styles of the age. The author has testified to the verses, narrations and poems of his earlier and contemporary poets such as Salman Savoji, Zahir Faryabi and Rumi in various positions of the letters. The prose style of the origins is technical and somewhat artificial, so that it is not left out of the usual secretarial expressions and the use of references, puns and other verbal and spiritual techniques. In some expressions of prose, it has taken on a poetic aspect, which indicates the ability.