What the writer needs, including the author, is the limit, and the pamphlet. A book written by Abu Al -Fath Othman Ibn Jenni. His purpose is to dictate to his students to be a brief lexicon in Al -Mahmuz first, with important benefits in the compass and the extended, the writer needs, easy to reach and return to him. And it has been devoted to a large installment of it. As he said in the introduction to the book: These are the most useful words, which the writer needs, and it lacks their knowledge, we organized it in the context of the letters of the dictionary, as a precaution and almost, and we avoided what was brutal and strange from that