The book includes 80 minimal stories each one less than one page about the Iran-Iraq war and its consequences. The first part of the book focuses on the events during the war and the second part relates 40 minimal stories happened after the war. The title of the book is coped from the draft note of the son of a chemical injured veteran. The stories are somehow related to each other whether in character of the subject and idea. The collection has a kind of comprehensive look at the Iran holy defense and its implications for people's lives. Mustard is a donkey reflects a human and critical look at the aftermath of the war and deals with individuals and families directly involved in the incident. The writer believes that his work could not be considered as a documentary book of Holy Defense; however, Mahdi Noormohammadzadeh, emphases that Mustard is a Donkey is implicitly reflection of the real incidents and experiences of the people in the war flavored with the imagination and features of story writing.

Mahdi Noormohammadzadeh, 1979- Mahdi Noormohammadzadeh, started his professional story writing in 2014 with “Puppet Crisis”, a collection of short stories published by Neistan Publication. His second work “Mustard is a Donkey” published in 2016 by Revayat Fath Publication and his last collection of short stories “Puce Nalein” was published in 2017 by Shahrestan Adab Inst. He has been awarded as the first prize of short story in the Festival of Revolution Story in 2012. Noormohammadzadeh works are mostly related to the Holy Defense and Islamic Revolution subjects. Short story is his favorite literary form and even in this genre, his tendency to minimal stories and stenography is obvious. He has M.A. in Electronics engineering from Tabriz University.