Iranians are a national group, not a religious group and as a result do not have a holy book as such. Currently, most Iranians are Muslims and would have the Qur'an as their holy book. A minority of Iranians today are Baha'i, Jewish, Christian, and the original Iranian Religion: Zoroastrian. Their holy books are: the Kitáb-i-Aqdas, the Torah, The Bible, and the Avestas.
The holy book
The holy book for Christianity is called The Bible.
the Holy Book for Zoroasterism is called the Avesta
The Holy Book is called the Bible.
The Christian Holy Book is called the Holy Bible. Christian means a follower of Christ Jesus.
The Bible is called the Holy Book because it is the inspired Word of God and God is holy. (Also the Holy Word of God)
Holy book for Parsis or Zorastrianism is Avesta.
the book is called your face
They use a book called "Holy Piby".
The holy book with 114 chapters called "Surahs" is the Quran in Islam.
The Quran is a very influential book in Iran, though it is preceded by the holy texts of the Zoroastrian religion. Also, though not a holy text, Shahnameh has deep roots in Iranian culture. Officially, it is Iran's national epic.
The holy book is called GURU GRANTH SAHIB