Al-Bayan in the counting of the Qur'an by Abu Amr al-Dani taught the number one of the sciences of the Holy Qur'an, and it means after the verses of each surah, and the counting of its words and letters, as it is concerned with dividing the Qur'an into parts, and parts into parties, and the scholars of the Holy Quran had great efforts in this science, and the book (Al-Bayan) of Al-Dani is one of the most famous books of this science, and this edition of the book has two features, the first:  Proof of the increases that the author has increased on the origin of the book, and the second: reference to new manuscripts that he did not rely on in the first edition of the book, along with the outstanding output of this edition.