Introduction to the Ancient Books and Documents Exhibition Hall: The Ancient Books and Documents Exhibition Hall displays more than 1,000 of the most representative Tibetan medical documents, as well as more than 300 modern and contemporary Tibetan medical books and precious ancient book printing plates. Through the printing plates of ancient books - "Four Medical Classics", "Yuewang Medicine Diagnosis", "Ancestor Oral Narration", "Four Medical Classics Lan Liuli", "Jingzhu Materia Medica" and other famous classics, it shows the vast classics and works of Tibetan medicine. A profound and complete system of Tibetan medicine theory.