It is also common for later generations to write works such as food classics, and it is also common to pretend to be elegant. For example, Han Yu, a member of the Amin Dynasty, once compiled a book with eight contents: making, pickling, vegetables, making cages, making stoves, cakes, vegetarian food, various soups and various medicines. The title of the book is called "Yi Ya Legacy". In addition, Renzhou's "Yi Yi Ya Yi" is also an antique diet book under the guise of name.