1, "Ma Xiang" is a classic work of ancient physiognomy and is considered as a masterpiece of physiognomy. It contains a wealth of physiognomy theory and technology, covering many aspects such as physiognomy, palm reading, horoscope and so on.
2. Liu Zhuang's physiognomy is another classic book of ancient physiognomy written by Yuan Xun. Liu Zhuang's physiognomy inherited and developed the essence of horse medicine physiognomy, and initiated the study of female physiognomy.