This encyclopedic book is a huge book that deals with the sciences related to the Holy Quran, such as: the citizen of descent, its times and facts, the readings and the verses of the Quran, the Quranic verses and the Tajweed, and the provisions of the Quran, such as the public and the private, the whole and the revealed, the absolute and the restricted, the copyist and the abrogated, , With the explanation of these things and representation and promised conditions, and this book is considered the mayor of researchers and writers in this art; because it has collected the previous books composed in the sciences of the Koran. Where he mentioned the author eighty types of science of the Koran as a way of integration and total, and then said after saying something kind: «If the type of what I incorporated into it to the three hundred.