Alba's picnic in the layers of writers. A book written by Abu al -Barakat, Kamal al -Din, Abd al -Rahman bin Muhammad al -Anbari; In the translations of linguists, grammarians and writers, as he said in the introduction to the book: I mentioned in this book the knowledge of the people of this industry, and those who are close to them in credit and mastery, and their conditions and their times showed a goal of revelation and statement