Marsall and Cooke’s entry on Haidong focuses on the politics of populations, discussing the relative sizes and political clout of different ethnic populations (Han, Tibetan, Hui and Tu) in Haidong. Their entry on Haidong gives a wealth of details on its population, focusing especially on the ethnic makeup of various regions in Haidong and related issues of autonomy. Their analyses rely mostly on Chinese census data but interpret them critically, including considerations of their representativeness.