Book mayor; It is considered one of the most important books classified in the chapter "Literature of the Book", which is a great, rich book, and well -classified, well -classed, tab and division, indicating the amplitude of its author's knowledge, the diversity of his knowledge, the large number of his narration and his investigation in it. His author wanted to collect what the writer needs and strive to bring him closer and mention the eyes of what he benefits from line, satire, Arabic, language and libraries, respectively for men and women, eyes from messages and so on.