A critique on The history of Iran's fiction

The history of Iran’s fiction is a book that tries to research on Iran’s fiction and it’s geners as novel, short story,…. It tries to show their evolution by review on their Sources and historical background (folk tales, itinerary, diaries,…). The writer has written about the kind of novel as historical or detective novel.
However, there are some defects too. These defects includes structural defects (as distribution of content,….) and the methodology. The methodology (evolutionist methodology) itself causes some defects too, defects as ignore some geners as itinerary, diaries,… and inabling from Express the reason of some innovations. A research on the Content causes some questions too.The questions that there is no ansower fome them in the book.