This volume is a collection of studies of various religious groups in the changing religious markets of China: registered Christian congregations, unregistered house churches, Daoist masters, and folk-religious temples. The contributing authors are emerging Chinese scholars who apply and respond to Fenggang Yang’s tricolor market theory of religion in China: the red, black, and gray markets for legal, illegal, and ambiguous religious groups, respectively. These ethnographic studies demonstrate a great variety within the gray market, and fluidity across different markets. The volume concludes with Fenggang Yang reviewing the introduction of the religious market theories to China and formally responding to major criticisms of these theories.