In the Hall of Concentrated Doctrines (Ningdao dian), east side hall of the Hall of Martial Valor (Wuying dian), the exhibition features 40 types of “palace edition” books, focusing on the development of book printing industry in the Hall of Martial Valor for visitors to understand the activities and achievements of the court cultural governance of the Qing dynasty, and to have a glance at the acme of paper, ink, block-carving, collating, and binding techniques that have been lauded by predecessors.