1. Christianity in the Modern World: Changes and Controversies Abingdon, Oxon : Routledge, 2018, ©2014. HIST220
2. The first thousand years: a global history of Christianity Wilken, Robert Louis, 1936-, New Haven : Yale University Press, [2012] HIST420
4. The age of reform (1250-1550): an intellectual and religious history of late medieval and Reformation Europe Ozment, Steven E, New Haven : Yale University Press, 2020 HIST220
