 Sometimes, Đông Hồ paintings are shown in couplet or quartet to fully express the signification of the set, for example the "Vinh hoa" (eminence) and the "Phú quý" (prosperity and honour) should be taken in couple.In addition, Đông Hồ paintings are a medium to express the social concern of craftsmen through subtle social, political, and cultural criticism.For example, before World War I, Đông Hồ villagers produced a set of four prints entitled "Văn minh tiến bộ" ("The Progress of Civilization") in which the Westernization of the Vietnamese society was delicately criticized through the satirical portrayal of contemporary Vietnamese people dressing and behaving like French people.