Negaresh & Virayesh and editing is a valuable work of Ahmad Samii (Gilani, that has been a student, resource and student textbook for many years in teaching writing and spelling. The numerous prints and the large number of reprints have proved it to be of great interest to readers and audiences. The book has two main parts: Writing and Editing, in which Samii Gilani has explained and argued as much as possible, citing evidence and arguments. The major errors and slips found in the first section (writing) of the work are: lack of introduction, section titles in sentence from, inconsistent paragraph lorganization, inclusin and explanation of non-writing entries; research paper, reference, definition section; They do not seem appropriate to the writing effect. Editing section errors (mentioning linguistic errors) include: not giving sufficient reasons for enumerating linguistic errors (editing language), insisting on contradiction of word spellings, seperation in spelling contradicting spelling words with the Farsi script. This article seeks to cite as much as possible the evidence of the work. The research method of this paper is comparative, analytical, and critical, the evidence of which is gathered through documentary and invoice method.