The methods employed today for the correction and publication of the old Persian texts that come to be closely similar to the original, are greatly indebted to the attempts made by late Allameh Dehkhoda, Allameh Ghazvini, and of course Dr. Mohammad Moin. Since the method of correcting texts is in fact based on scrupulous scrutiny, thus, leaning on different sources, attempt has been made in this paper to introduce Dr. moin's activities as well the works corrected by him in the hope that the present work would prepare the grounds for the researchers and students in particular, to take the further steps in this connection. The author of this paper deemed it right to allocate the introductory part of this paper to a segment of the letter of will written by Nima Yushij whose activities and works in a new literary realm opened a new horizon in our literature.