There have been some criticisms for The Comprehensive History of Iran book series, including: Some chapters of ancient Iran (pre-Islam section), such as the history of the Medes, have nothing new to say and are merely interpretations of Persian translations of the works of earlier orientalists. The method of references used in the first five volumes is different from the next fifteen volumes and is unusual and has no special logic. It does not uniformly present the true meaning of history. Some parts of the book are copied and duplicated from the book Encyclopedia of Iran from the same publisher. The inadequacy of some sections is astounding. Some sections are not written by historians and are a kind of political interpretation based on specific texts. In some cases the writers are outstanding or the best in their field, in some cases they are mediocre and in some cases they are weak. Lack of serious study of the history of Iran in the twentieth century, especially the Pahlavi era and the Islamic Revolution and performance of Government of the Islamic Republic of Iran. The way the book was presented was very promotional. This book has been prepared with great haste. This book is just a chronicle, without regard to new information and references to a large volume of new books and research. The articles do not have the right ending and conclusions. The book's editing is incomplete and some of the reviews have been personalized.